WiFi Issues - T-Mobile Samsung Galaxy S6

Not exactly certain where to post this (as I am not altogether certain the cause) so if mods have a suggestion to move it let me know.
I have a rooted Tmobile S6 (not rhe edge) running Sick as Hell custom Rom version X w/ Unikernel v9.
Periodically my WiFi signal will display the ER041 - DNS (or less frequently the ER081) error which I believe is related specifically to WiFi calling.
My GF has the exact same phone and the same setup (I think she has WiFi calling enabled as well).
I have run some tests previously where I turned WiFi calling off and still had hiccups with the WiFi (both home and at work).
It seems that when I clear the cache and reboot the issue resolves itself but only short term before I have to do it again.
No one else in the house is having WiFi issues such as me and I cannot seem to figure out if there is a setting that is throwing things off or what.
Any help is greatly appreciated.

Mine does this too but it usually clears itself up within a minute or two.

OP, check your IP address to see if your phone is getting an IPv4 address. I don't know why, but my phone was having major issues with this. I still haven't figured out exactly what the issue was; I was on Sow Nice, flashing back to stock solved the problem. The phone was getting an ipv6 lease, just not ipv4, for no apparent reason.
If that doesn't help, I would advise setting network configuration manually. However if ipv4 isn't working, this may not solve the issue.

WiFi Issues
Alright gang I need some brainstorming...and curious if any other T-mobile Galaxy S6 users are experiencing this issue. I don't believe it is ROM related but thought I'd post the inquiry in here anyhow.
Specs:
T-Mobile Galaxy S6 (SM-G920T) rooted with Sick as Hell X and Unikernel v9.1.
Baseband: G920TUVS3DOJC
Issue:
WiFi is intermittent (both work and at home). WiFi will be running fine on this device and also on my Kindle Fire and at some point WiFi on my S6 will stop working. The WiFi icon will still appear and the up/down arrows will flash but I can't pull up Google search results, YouTube videos, etc.
I get a ER041 - DNS error which is related to wifi calling but I think this issue is in fact DNS related (I've googled and googled and am just not entirely certain, if it is DNS related, exactly how to change settings to thwart this issue going forward).
If I run a speedtest I will get a "Network Communication Issues" message. If I turn off WiFi and then turn it back on the connection is still broken.
HOWEVER, if I clear the cache and reboot the phone, it will connect to WiFi for a period of time until the connection gets broken once again.
My phone seems to be the only device experiencing this issue. I have booted into Safe Mode and the issue still occurs so it doesn't appear to be app related. The Smart Network switch has always been off as well so I know that isn't the culprit.
At work I'm not going to be able to check the router settings but obviously I can at home (at home 4 other users connect to WiFi no problem).
There has got to be some sort of tweak/button/setting that I'm just not catching that is causing this. It is irksome.
I recently did a factory reset but the issue is still persistent. Scanning the interwebs this seems to be a pretty common issue with the S6 and Lollipop.
Any ideas??

socal87 said:
OP, check your IP address to see if your phone is getting an IPv4 address. I don't know why, but my phone was having major issues with this. I still haven't figured out exactly what the issue was; I was on Sow Nice, flashing back to stock solved the problem. The phone was getting an ipv6 lease, just not ipv4, for no apparent reason.
If that doesn't help, I would advise setting network configuration manually. However if ipv4 isn't working, this may not solve the issue.
Click to expand...
Click to collapse
Ya lost me on the IPv4 ipv6 lease jargon.

WiFi issued are 99% kernel related

The Sickness said:
WiFi issued are 99% kernel related
Click to expand...
Click to collapse
Hmmm...well then, Twisted v7.1 has yet to settle in so I guess I can let it ride for a couple days and see how things go.
Thanks bud

cwhiatt said:
Hmmm...well then, Twisted v7.1 has yet to settle in so I guess I can let it ride for a couple days and see how things go.
Thanks bud
Click to expand...
Click to collapse
Keep in mind, the other kernels are international
source.
EDIT.... also uni kernel adds a default.prop in system that has ro.securestorage=false when it needs to be set to true for USA devices

I'd say at this time I can rule out the kernel (it's a been a few days now running Twisted v7.1). I honestly think it is a Samsung bug. Not just S6 users but Galaxy S7 users are now reporting the issue as well (there is a thread over at AndroidCentral).
Just like myself, those users are reporting that Smart Network switch and Blutetooth and the like are turned off/disabled and yet the problem persists.

I've had WiFi issues on an s6 edge. But I figured it out that if I'm near my microwave and it's on WiFi dies on the phone. Soon as the microwave goes off it works fine ?

ShinySide said:
I've had WiFi issues on an s6 edge. But I figured it out that if I'm near my microwave and it's on WiFi dies on the phone. Soon as the microwave goes off it works fine
Click to expand...
Click to collapse
Huh. Not the case in my situation. I've got a microwave but it's in the basement and rarely used.

Related

Wifi Issue?

Hi all, happy Friday! I searched for my paticular issue but couldn't find anything. Just wondering if anyone else has experienced this issue or something similar. What happens is my revo isn't automatically reconnecting to wifi when i go out of range and then back in. I will notice it's using data (4G or 3G) and when i go to wifi settings the wifi network says disabled and i have to go to it and hit connect. What's more weird is it's doing this with the wifi at work but not at home. It's not an issue with the wifi at work though because other people here have androids, iphones and blackberrys and don't have the issue. The phone has done this since i got it. I've looked at the wifi sleep setting and made sure it is set to never to rule that out. I've done several powerdowns and battery pulls since i got it also. Anyhow just wondering if anyone has heard of this. Thank you and sorry for the length of my post.
That happens on my phone as well, but will reconnect to my home network after the screen is on for a few seconds
Sent from my VS910 4G using xda premium
(Not a very productive post incoming)
I don't have that issue but I always turn my wifi off when I'm not using it. Better battery life plus no issues
Yeeup, I've had that exact issue on this phone from day 1. Some may not consider it a big deal, but it's actually one of my biggest pet peeves about the phone. I was hoping the V6 software update back in August would contain a fix for it, but I didn't notice a change.
Haro912 said:
(Not a very productive post incoming)
I don't have that issue but I always turn my wifi off when I'm not using it. Better battery life plus no issues
Click to expand...
Click to collapse
While that's a valid workaround, and i'd love to do that, it's not an option for me. I have the lowest data plan you can have on a smartphone (2gb), so i have to be on wifi whenever it's available so as not to go over usage. What's odd though is the phone only seems to do this with the wireless at work. I even went somewhere this past weekend that i haven't been in a while and the phone remembered and connected right up to the wifi there. Other smartphones at work don't behave this way with the wireless at work though. I'll just have to live with it, i'm used to it now anyway. Just have to remember everytime or i'll be using up my precious data. I'm wondering if the update to gingerbread (if our revo ever get it) will do anything with this issue.
What type of security is implemented at your work? I know there is a very common problem with PEAP and MSCHAPV2 authentication and FROYO. I can connect, but as soon as I change to another antenna, I get disconnected. It is the only reason I know I want Gingerbread. It was supposed to be fixed in Gingerbread.
gigem01 said:
What type of security is implemented at your work? I know there is a very common problem with PEAP and MSCHAPV2 authentication and FROYO. I can connect, but as soon as I change to another antenna, I get disconnected. It is the only reason I know I want Gingerbread. It was supposed to be fixed in Gingerbread.
Click to expand...
Click to collapse
Good question gig, work has 2 networks. One uses PEAP and the other is for guest internet access, i have it on the guest. I gather from what you've said it wouldn't help any to try this issue on the main PEAP network.
I have an update on my issue. I was at lunch yesterday and trying to connect to the free wifi there and noticed that the wifi network at work that's been giving me problems was on the list of remembered networks twice! I have no clue how this happened (in troubleshooting i always hit forget). I didn't even know it was possible for any device to have duplicate entries of wifi networks. I deleted one of them and it seems to have worked (so far). Some other people replied saying they were having my issue too, so i wanted to update this thread in case it would fix their issue too.

Wifi Issues?

Is anyone else having an issue where your device will be hooked up to a wifi network, will still indicate you're connected but no data will sync? I email myself and nothing happens. Happens with FB, Email, Gmail, and Voice Controls don't work.
ShamanicEnzan said:
Is anyone else having an issue where your device will be hooked up to a wifi network, will still indicate you're connected but no data will sync? I email myself and nothing happens. Happens with FB, Email, Gmail, and Voice Controls don't work.
Click to expand...
Click to collapse
I have that issue with my gNex and my wife's DNA on our home network. I don't think it is necessarily this phone, but I am not convinced (yet) that it is my router, either...
TheKaz said:
I have that issue with my gNex and my wife's DNA on our home network. I don't think it is necessarily this phone, but I am not convinced (yet) that it is my router, either...
Click to expand...
Click to collapse
It comes and goes, it looks almost app specific. I say Hello Google Now, and it seems to lock up on recognition or says it can't connect to google....but I'm able to browse the internet.
Yeah I've been having a ton of WiFi issues with this phone.
Slusho said:
Yeah I've been having a ton of WiFi issues with this phone.
Click to expand...
Click to collapse
I called Moto and after dealing with their terrible level 1 support I got the following:
HERE ARE THE INSTRUCTIONS FOR DOING THE WIPE CACHE PARTITION:
This will remove any temporary files that may be causing the problem, but will not delete your files or settings.
1. With the phone powered off, press the VOL DOWN KEY for 2-3 seconds then POWER key then release.
2. The device will display different BOOT OPTIONS
3. Use the VOL DOWN Key to SCROLL to Recovery and VOL UP Key to select
Tip: If the device reboots, you may have waited to long to make a selection, you will need to begin the process again.
4. The device will display the Motorola logo and then the Android in distress ( logo with Exclamation mark)
5. Press and hold the VOL UP key for 10-15 seconds. While still holding the VOL UP key tap and release the POWER key
Tip: You can try this step, holding the phone in landscape. If you are stuck on step 6, try a force reboot by pressing the Power key and Vol Down key, and start the process again.
6. The device will display additional menu options (Text will appear in BLUE)
7. Use the VOL DOWN Key to scroll to wipe cache partition and the POWER Key to select this option
8. The device will then perform the partition wipe
9. The device will reboot and start the normal power up sequence
Ever since it hasn't had any problems, but it's only been a few hours as well.
The issues started happening again...turned off wifi and everything resynced perfectly...
ShamanicEnzan said:
The issues started happening again...turned off wifi and everything resynced perfectly...
Click to expand...
Click to collapse
Have you tried it on a different router?
Sent from my Nexus 7
phositadc said:
Have you tried it on a different router?
Sent from my Nexus 7
Click to expand...
Click to collapse
I haven't been able to yet, I'm hoping to at work, but my current router works with my laptop and my old HTC
ShamanicEnzan said:
I haven't been able to yet, I'm hoping to at work, but my current router works with my laptop and my old HTC
Click to expand...
Click to collapse
If it doesn't work properly with a different router try exchanging it. Also have you gone into advanced WiFi settings and forced the moto x to 2.4 GHz? If give that a try.
Sent from my Nexus 7
phositadc said:
If it doesn't work properly with a different router try exchanging it. Also have you gone into advanced WiFi settings and forced the moto x to 2.4 GHz? If give that a try.
Sent from my Nexus 7
Click to expand...
Click to collapse
It was set to auto, I set it to 2.4 ghz...now to wait if it happens again.
phositadc said:
If it doesn't work properly with a different router try exchanging it. Also have you gone into advanced WiFi settings and forced the moto x to 2.4 GHz? If give that a try.
Sent from my Nexus 7
Click to expand...
Click to collapse
The force to 2.4ghz actually made the problem occur a lot faster, any reason it might be due to the massive amount of wifi networks around? When I set to scan 5 ghz there was only one still open, I might go into my router and see if I can change the atenna settings.
EDIT: Turns out if I go to 5 ghz my computer can't connect, but I changed the channel to something less populated in the area to see if that helps.
DOUBLE EDIT: It appears to occur after I'm supposed to get a Facebook notification, at that point I don't get any more notifications....attempting to clear out facebook data and cache to see if that does anything
Try disabling WMM on your router.
drilus said:
Try disabling WMM on your router.
Click to expand...
Click to collapse
Forgive the stupid, but what's WMM short for in case that's not readily apparent?
Edit: I've also noticed the problem is exponentially worse after I upload pictures to facebook
Edit Edit: Found WMM, turned it off, let's see what happens.
I has this kind of issue before and did a cold boot but nothing happaned. so my last option was to do a restore. After that, my WIFI connection got okay again. problem solved :silly:
alicepattinson said:
I has this kind of issue before and did a cold boot but nothing happaned. so my last option was to do a restore. After that, my WIFI connection got okay again. problem solved :silly:
Click to expand...
Click to collapse
You mean full reset? It looks like I may have to do that with the idle battery drain issue anyways....so that's the last resort.
Hey guys I'm having a similar issue with my moto x on the 2.4ghz band. Speeds are very slow and sometimes cut out completely. Im getting a download speed of about 300kb/s on 2.4 both on auto channel and it doesn't rlly change once I change it manually to an open channel using WiFi analyzer app. My download speeds on 5ghz hit 4000kb/s even with a much lower signal strength.
YouTube and Netflix is unusable and growing the internet sucks. I usually just use the 4g network while at home cuz its a thousand times faster but I'd like this to be fixed regardless. Has anyone found a solution or explanation?
2.4 ghz wifi issues
matt87n said:
Hey guys I'm having a similar issue with my moto x on the 2.4ghz band. Speeds are very slow and sometimes cut out completely. Im getting a download speed of about 300kb/s on 2.4 both on auto channel and it doesn't rlly change once I change it manually to an open channel using WiFi analyzer app. My download speeds on 5ghz hit 4000kb/s even with a much lower signal strength.
YouTube and Netflix is unusable and growing the internet sucks. I usually just use the 4g network while at home cuz its a thousand times faster but I'd like this to be fixed regardless. Has anyone found a solution or explanation?
Click to expand...
Click to collapse
I'm having these issues too. Got the GSM Developer Edition on 11/29. It immediately updated to Kit Kat OTA so I'm not sure whether it had the issue prior to Kit Kat or not. This only happens on 2.4 ghz wifi and only with one of my routers at home, a Netgear WNDR3700v2 running OpenWrt Attitude Adjustment (I tried upgrading from Backfire to see if it would help, it did not). The other router is a Linksys WRT350N and when the phone is connected to that one the problem does not happen. Note, that there are 2 laptops, a Samsung Galaxy S2, and a Kindle Fire HDX that have zero problems with the WNDR3700. All can transfer data perfectly fine and at high speeds. Thus I do not think the router is bad. Have not checked work routers. 5 ghz wifi is totally fine and indeed very good with this phone.
For me, the problem is that the phone seems unable to receive data at high speed (over 1Mbps) on 2.4 ghz wifi in any area where the signal isn't perfect and sometimes even in the same room as the router (although usually it is fine there). Oddly in many cases when it has trouble receiving it can send data much faster. It almost seems like it might be some kind of interference as it is rather random.
At this point I'm wondering if the phone has a defective 2.4ghz subsystem, though that seem unlikely due to good transfer with the WRT350N, or if this is some kind of wifi tuning software bug in the phone.
Any info would be appreciated. Does anyone have this issue who did not have the issue on Jellybean? Am wondering if anything changed with wifi for the update? Note, I have tried clearing the cache in recovery as noted in another thread with no luck. Anyone have the WCNSS_qcom_cfg.ini file from Jellybean for this phone? Would rather not reflash just for 1 file.
Thanks.
glimmer00 said:
I'm having these issues too. Got the GSM Developer Edition on 11/29. It immediately updated to Kit Kat OTA so I'm not sure whether it had the issue prior to Kit Kat or not. This only happens on 2.4 ghz wifi and only with one of my routers at home, a Netgear WNDR3700v2 running OpenWrt Attitude Adjustment (I tried upgrading from Backfire to see if it would help, it did not). The other router is a Linksys WRT350N and when the phone is connected to that one the problem does not happen. Note, that there are 2 laptops, a Samsung Galaxy S2, and a Kindle Fire HDX that have zero problems with the WNDR3700. All can transfer data perfectly fine and at high speeds. Thus I do not think the router is bad. Have not checked work routers. 5 ghz wifi is totally fine and indeed very good with this phone.
For me, the problem is that the phone seems unable to receive data at high speed (over 1Mbps) on 2.4 ghz wifi in any area where the signal isn't perfect and sometimes even in the same room as the router (although usually it is fine there). Oddly in many cases when it has trouble receiving it can send data much faster. It almost seems like it might be some kind of interference as it is rather random.
At this point I'm wondering if the phone has a defective 2.4ghz subsystem, though that seem unlikely due to good transfer with the WRT350N, or if this is some kind of wifi tuning software bug in the phone.
Any info would be appreciated. Does anyone have this issue who did not have the issue on Jellybean? Am wondering if anything changed with wifi for the update? Note, I have tried clearing the cache in recovery as noted in another thread with no luck. Anyone have the WCNSS_qcom_cfg.ini file from Jellybean for this phone? Would rather not reflash just for 1 file.
Thanks.
Click to expand...
Click to collapse
For what it's worth I have this same Netgear router and have had the same connectivity issues on both 4.2.2 and 4.4.
I did some reading today and found a couple possible fixes I plan on trying out. First one is to disable WMM. Secondly I found on the official netgear forums that they have had major issues (some of which you've described) with all firmwares ending in the .30s and went so far as to pull them from their download section.
My router was running firmware .36 and I successfully downgraded it to the latest stable firmware .12 that netgear now recommends.
Hopefully 1 of those 2 fixes improves the performance, at any rate I really think it's something with the router itself and not the moto x.
Sent from my XT1060 using xda app-developers app
Thanks for letting me know this was also an issue on 4.2.2. Saves me the trouble of flashing back just to test.
I will be interested to know if your using official netgear 1.0.0.12 firmware fixes the issue for you. I haven't actually ever used the official firmware as I've run OpenWRT since I got the router a year or two ago. 10.03.1 had the issue, and it appears 12.09 does as well. I may try a trunk build at some point to see if that changes anything.
I had previously written that all was well on the 5 ghz band. This appears to not be 100% correct. Yesterday evening and this morning I found myself "connected" to the 5ghz band without actually having working internet. Toggle wifi on/off fixes it, but I shouldn't have to do it.
Not sure if this helps, but on the 2.4 ghz side things do work better on one side of the house vs the other. Also it seems that I can get a very fast connection at times and then it stumbles and gets stuck going under 1 Mbps. I still suspect either a defect or some kind of low level radio issues with the moto or the router regarding interference from neighboring wifi access points (there are a lot around me, single family houses on small lots). However, keep in mind no other device has these issues but the moto. In the rare instance I venture into a bad signal pocket the signal indicator goes down and speed slows or they lose connection vs the moto where it can show excellent signal and have no/nearly no connectivity.
I haven't tried it for long, but switching to wireless g mode vs ng may improve stability though I only briefly tried it. I did walk around part of my house checking the Mbps with the app "WiFi Speed Test" and while way slower than N mode it was far more stable. Even if this does work it is a definate downgrade in speed though.
Well its only been a day or two so it may be too early to tell, but so far my wifi seems much better after making those two fixes I mentioned above. This is on 2.4 band, the 5ghz band doesn't provide me enough signal strength to use all the time (router is too far from my bedroom).
The main issue I was having was my wifi signal would cut out even though it still showed a good connection. I could swipe down on the status bar and see no download arrow next to the wifi icon so I knew I wasn't receiving data. However a simple disconnect and reconnect to my wifi would fix the problem until it happened again. This seemed to be most common while watching YouTube videos, in fact it happened far too often which is why I went searching for a solution.
So as I mentioned things seem to be better for sure so far but I need to give it a week or so to see how much it is really helped, but so far I can't remember any wifi cutting out since I've made those two fixes.
Sent from my XT1060 using xda app-developers app

Wifi Problem

I have the Verizon LG G2 device (VS980) with Android 5.0.2(39A) At this time, I'm not rooted but am experiencing a WiFi problem that is driving me nuts. Basically, anything that uses WiFi such as my browser, has a delayed reaction before actually downloading anything. Once it starts the speed is fine, but the problem is before that. It looks as if it uploads for 5-10 seconds and then downloads 5-10 more seconds later.
It shouldn't be an issue with my Linksys E1200 router as every other phone/tablet/laptop work fine and once the speed test is connected to the server, I get 20-30mbps which is normal. Again, the problem is like a delay before the downloading actually occurs. On average, it takes 15-20 seconds to start loading a page and then the speed of my internet kicks in fine. This happens every single time if the wifi hasn't been used for a few minutes.
My LTE service connects right away. I've tried forgetting the network and re-entering my network key and I don't really know what else to do.
Any help is greatly appreciated! Thank you!
Edit: I just went to McDonald's and even though their WiFi is slower and the ping is worse, the connection starts right away when going to a website. So maybe it is my router?
I have the exact same problem lol! My relatives Galaxy S4, Note 4, S6 and Nexus 4 (all on lollipop), seem to not be affected. Their phones run perfectly fine on my WiFi. I've tried multiple things to fix the problem, but none of them fix the problem permanently. The only way I could get a stable WiFi connection, is by using an ASOP, CM12, or stock KitKat rom. It looks like the issue has something to do with ipv6 (at least for me). I don't have the knowledge to tinker with WiFi and modem/router issues or settings. I did tried though lol. The best way I deal with the issue when I'm on stock, is by using an app named "disable ipv6 root" or something like that. It does require root and you have to keep toggling on the disable feature every time you reconnect to your WiFi or reboot the phone. Hopefully, maybe somebody else with more knowledge on WiFi and router settings can offer some help on how to permanently fix it.
Sent from my Nexus 4 using Tapatalk
Thanks for the response. Yeah, I'm pretty sure it has to do with my router. I hope to get a new one sometime soon but they're not exactly cheap for the ones I want to buy. I will probably flash ASOP or CM on to my phone at some point, just been too busy lately.

Dodgy wifi

Has anybody had any problems with their WiFi not connecting? My device seems to fail to connect to wifi after a couple of days and just sits trying to connect. Toggling WiFi doesn't seem to resolve it, and I have to reboot the entire phone to get it back online.
No problem here.
Connects very quickly, never seen it fail to connect, even on my works dodgy BT homehub 3, which used to tie my old Z3 compact up in knots..
Yep.I thought that Snapdragon 835 cause this problem. Xi oami 6., ZTE z17 and Op5 had the same question with WI-FI connection.
gesongwei said:
Yep.I thought that Snapdragon 835 cause this problem. Xi oami 6., ZTE z17 and Op5 had the same question with WI-FI connection.
Click to expand...
Click to collapse
I have a sd835 s8 and I haven't had any wifi issues whatsoever since launch. It's a sample size of 1, but I don't know if it's truly due to the sd835
I haven't had any WiFi issues. In fact my WiFi connections have improved using the XZ1 compact over the X performance (the X performance dropped its WiFi connections 3 times during my data transfer to the new phone)
I've had my XZ1c for about a week now (European model) and it connects to my home network (5G) normally. Signal strength is fine, although the galaxyS6 it replaced definitely had superior reception. I do have wifi issues, but only when already connected to the network. When the phone is asleep (screenlocked) it seems to lose an active connection. The wifi connection should be on at all times, even asleep. It will show the wifi symbol, but data apps don't load, and it will have lost the connection as remote for spotify connect (playing on my reciever). It will also switch to mobile data at random times with normal wifi signal strength (even though I toggled this function off in the developper settings).
I'm not sure if this is something that can be fixed through system updates. I haven't seen any forum posts with similar problems though, so I'll try to document what is actually happening before I contact Sony support.
I bought the US version and flashed the UK firmware to get the fingerprint reader to work. No issues whatsoever with this phone. No Wi-Fi issues, overheating, signal strength, battery, nothing. Everything works just perfectly.
Same issue here. Mine is Europe (NL) version. The upload and download speed can be very unstable. And especially when I take it a bit far way, even you see that it's connect to the wifi with full signal strength, it said internet is unavailable.
I'm not sure if this related to the system update of last weekend or not.
Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resolve it is to reboot the phone, which fixes it instantly.
I contacted Sony and they told me to do a complete reset on the phone, this didn't work. I updated my findings and pointed out that it's seems to be a firmware compatibility issue. Of course, you only get to talk to first line, and as a reset didn't work, they want me to send it off for a warranty repair (which of course will be returned with "no fault found" as no doubt their wifi will be different enough for it not to have been picked up on day 1 testing).
I'm currently trying to gather a bit more information on the fault, e.g. does it only happen on my home wifi etc. I've disabled channel bonding but that didn't help, and I've not jiggled my DHCP settings after seeing plenty of posts describing wifi problems on Oreo for other phones.
It doesn't happen frequently enough and I don't have the time to delve deeply into the network to identify the cause.
One interesting thing was that it went funny at home, but it was working when I got to work. When I got home it still couldn't connect. So I suspect it's to do with a particular compatibility issue somewhere.
no problem here conecting to 5 and 2.4 wifis...
android_fury said:
I bought the US version and flashed the UK firmware to get the fingerprint reader to work. No issues whatsoever with this phone. No Wi-Fi issues, overheating, signal strength, battery, nothing. Everything works just perfectly.
Click to expand...
Click to collapse
I haven't gotten around to this yet. Do you still have wifi calling and volte available?
---------- Post added at 11:05 AM ---------- Previous post was at 11:04 AM ----------
So far my wifi has been fine...
Mine is worst, i couldnt get it to connect at all but all my other device including xperia xa, xzp, laptop, Ps4 PS3, everything connect without any issue whatsoever, already excahnged once and still the same.
Think mine is struggling with either a single access point or VLANs. I need to dig further, but that requires buying a new AP - this phone is getting more and more expensive!
exactly same issue as Dashers describes with my XZ1c. I am not watching it closely, but it seems that it is hapenning after around 2 days online. Never happened before on same network with my previous Z3c, which had run months without restart and any problems whatsoever (till its display died
Dashers said:
Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resol... .
Click to expand...
Click to collapse
I have more or less the same issues, and a reboot always solves it. It happens with both routers form ASUS and Draytek.
Additionally I see issues with Spotify connect dropping or not being found on my Sonos (hardwired to LAN), but not so much to Chrome Cast Audio on the same network.
I don't have a problem connecting to wifi, but I seem to have a different issue. Even though wifi scanning is toggled off in settings, my phone still seems to be scanning according to Battery Historian. I think this is one of several things contributing to my high idle drain. Does anyone else have this problem?
jrbmed08 said:
I don't have a problem connecting to wifi, but I seem to have a different issue. Even though wifi scanning is toggled off in settings, my phone still seems to be scanning according to Battery Historian. I think this is one of several things contributing to my high idle drain. Does anyone else have this problem?
Click to expand...
Click to collapse
Have you turned wifi scanning off ?
settings\Lock screen & security\Location\Scanning - turn wifi scanning off
Didgesteve said:
Have you turned wifi scanning off ?
settings\Lock screen & security\Location\Scanning - turn wifi scanning off
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Yes, wifi and BT scanning are both turned off in settings and have been since the beginning, but both seem to be happening anyway according to Google's Battery Historian tool. When I go back in to see if they've been toggled on by an app or something, they still appear to be off.
Dashers said:
Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resolve it is to reboot the phone, which fixes it instantly.
I contacted Sony and they told me to do a complete reset on the phone, this didn't work. I updated my findings and pointed out that it's seems to be a firmware compatibility issue. Of course, you only get to talk to first line, and as a reset didn't work, they want me to send it off for a warranty repair (which of course will be returned with "no fault found" as no doubt their wifi will be different enough for it not to have been picked up on day 1 testing).
I'm currently trying to gather a bit more information on the fault, e.g. does it only happen on my home wifi etc. I've disabled channel bonding but that didn't help, and I've not jiggled my DHCP settings after seeing plenty of posts describing wifi problems on Oreo for other phones.
It doesn't happen frequently enough and I don't have the time to delve deeply into the network to identify the cause.
One interesting thing was that it went funny at home, but it was working when I got to work. When I got home it still couldn't connect. So I suspect it's to do with a particular compatibility issue somewhere.
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I have this exact problem. One second its 100% signal and is workin as expected. The other second it just drops and tries to reconnect like crazy. I have even had moments when i am unable to find my wifi after said disconnect. All my other devices is working like normal on my wifi. Using Asus n66u 5ghz.
I have been having the same issues as mentioned above with my XZ1 compact(european). My issues with dropping wifi signal seems to be happening when there are two different wifi signals to choose from. They are both on my local network. One is an extender due to the size of my house. When it can detect both signals, it can't make a decision on which one to choose. Once I remove a device(forget wifi device), it stays connected to the other with no problem. Since it isn't trying to compete with the other.
Has there been any improvement on this issue?

Wifi problem on s10/+ !!!

My wifi keeps dropping as well, it's getting to the point where I might return to Samsung unless it's fixed in a firmware update!
mipepim said:
My wifi keeps dropping as well, it's getting to the point where I might return to Samsung unless it's fixed in a firmware update!
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here does the wifi issue happen? just at home? on public wifis as well? work wifi? is your vpn turned on? thats a common thing that causes issues.
mipepim said:
My wifi keeps dropping as well, it's getting to the point where I might return to Samsung unless it's fixed in a firmware update!
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Same problem started to happen recently with my phone but only with 5GHz WiFi.
Getting the same problem with 5ghz as well, have to shut it off and then reconnect to the router. Their networking coding is a disgrace, tons of complaints about it all over the place and Samsung does nothing.... I can't return my device but if you're still within the period of being able to, I would if I were you. I absolutely hate this device and all its problems.
I"m having a similar issue. First I noticed that LTE would stop working until I rebooted. Then the wifi would glitch up the same way. I'm not sure if it's the switch from one to the other, or what the deal is. The worst part is it's not repeatable. It just seems to do it randomly.
I have encountered the same problem with wifi dropping. I went to wifi setting and forget network and reboot. Punch the password back. Its working fine now. By the way im using the latest s10+ firmware rooted
Hi guys,
I was faced to the same issue since I bought my S10e. DO not mind the solutions proposed on generic sites (thecellguide.com, thedroidguy.com), they're garbage, totally irrelevant (reboot your phone, erase your cache blabla).
I've tried several hypothesis to troubleshoot this issue (very inconsistent wifi connection with my TPLink 4G routeur MR600, disconnecting every minute or so). In fact, tens...
And the final word seems to be, as observed by other users: 5GHz. After disabeling the option on my routeur (switching all traffic to 2,4GHz) everything is fine. For now.
Good luck
Chris (Fr)
I've also had this issue on the S10E where the wifi would be connected but no internet. After a few minutes it would no longer see the wifi. 5ghz of course. 2.4 no problem. I noticed this happened right after login to Samsung account. Now that I'm logged out Samsung account wifi is all good. I'm on the oneui 2 Jan sec update.
I have the same problem with my girlfriend's Samsung S10, it keeps disconnecting from 5GHz. Just now I switched her to 2.4GHz to see if it solves the problem. All our other devices (HTC One M9, 2x laptops, raspbbery pi 3, chromecast, google home) have no problem with the WiFi on either band.
Samsung really has a problem with it's network code, I also had a problem at work with Cisco APs when an Apple device and the Samsung S10 where on the same network it would bring the whole network down. It was some multicast bug where the Apple would announce itself as the gateway only when an S10 was present.
It's happened to me but never until after the last update. I noticed yesterday I was connected with no internet.

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