Bluetooth & WiFi Issues - Samsung Galaxy Note 9 Questions & Answers

Afternoon all,
I have the 512GB US Unlocked Note 9, and I have noticed two problems with the phone:
1.. On WiFi at my home (UBNT Access Points running latest firmware/software) I observe very poor WiFi performance on 802.11AC/5Ghz radio. If I switch to the 802.11N/2.4Ghz radio in the same AP, I get near wireline speeds when running a speedtest (about 175 down and 7 up). On 5Ghz, I barely get 7-10 down. No other WiFi devices have this issue.
2. Using Bluetooth audio in my truck (Dodge RAM with UConnect running latest firmware) I get audio dropouts/stuttering of about 1-2 seconds every few seconds, but this only occurs about 50% of the time. Sometimes it works flawlessly. I have no BT audio issues whatsoever when I pair my iPhone XR to this stereo.
Is anyone else having these sorts of wireless issues with their Note 9? The cellular/LTE speeds appear to be performing quite well and is very fast in an area with a good signal.
Thanks!
-Rob

Related

HTC One Terrible Bluetooth range .....

Friends ...... , HTC One it seems has a terrible Bluetooth range ....... I have a Logitech BoomBox (Bluetooth spks) and a Belkin Bluetooth receiver connected to my AVR. In both the cases, when connected to my HTC One it looses audio in just couple of feets. Specially with belkin receiver. But when I tested the same with my iPhone 4, it works perfectly, till the Bluetooth's designated range of 30 feet (10 meters) ... with both Belkin and Logitech ....
so it has something to do with HTC One's Bluetooth.
People with HTC One and having any Bluetooth audio device, please test this and report if you are also facing the same issue, Or is there something that I can try to increase the range. Its pathetic, 2-3 feets at the max. I am bitterly disappointed with this ..........
Regards.
Sammy
I think that Android 4.1 had a BT flaw that was fixed in 4.2.
so this means its more of an android issue than HTC One........ any alternatives to improve this, till we have an 4.2 update
I was using bt audio yesterday and it was horrible. I did some googling, try turning off wifi before you connect to the speakers, it solved my trouble straight away. I found if the music was playing when I turned wifi back on it would still be ok. Might help?
jiggle_ said:
I was using bt audio yesterday and it was horrible. I did some googling, try turning off wifi before you connect to the speakers, it solved my trouble straight away. I found if the music was playing when I turned wifi back on it would still be ok. Might help?
Click to expand...
Click to collapse
Jiggle .... my friend, you made the day for me, how so ever strange may it seem, it did work .... ..... I switched of my wifi and then connected Bluetooth to Belkin receiver and vola!! :victory:... no drop outs and was able to use BT at full 30 feets, and then if I switch on the wifi later all is well.
Strange, if wifi is working before I connect BT, it drops and is very uneven ......... must be some bug, but anyway, solution is not as irritating as one might expect.
Thanks again Jiggle, for you input, saved me a great disappointment.
Regards
Sammy
sam9s said:
Jiggle .... my friend, you made the day for me, how so ever strange may it seem, it did work .... ..... I switched of my wifi and then connected Bluetooth to Belkin receiver and vola!! :victory:... no drop outs and was able to use BT at full 30 feets, and then if I switch on the wifi later all is well.
Strange, if wifi is working before I connect BT, it drops and is very uneven ......... must be some bug, but anyway, solution is not as irritating as one might expect.
Thanks again Jiggle, for you input, saved me a great disappointment.
Regards
Sammy
Click to expand...
Click to collapse
whew you had me in a panic here. (o; I'm still a little traumatized from my asus T201 wireless issues.
The Wifi/bluetooth issue is a drawback of the aluminum body design of the One. Bluetooth shares an antenna with wifi transmit. I believe wifi receive shouldn't interrupt bt though.
Then there should also be a problem if I switch on wifi after I connect BT. ,... in which case it works. It only creates a problem, if the wifi is first on and then I connect BT. ...... which is strange
Just for information. I had 3 htc, desire hd, sensation, onex and ALL had problem with bluetooth, weak signal, using a headset with the phone in my pocket already failed. I now have a note2 and this problem does not occur, being used in the same situation. So ....
sam9s said:
Then there should also be a problem if I switch on wifi after I connect BT. ,... in which case it works. It only creates a problem, if the wifi is first on and then I connect BT. ...... which is strange
Click to expand...
Click to collapse
My m7 (TrickDroid, elementalX 0.11 default overclocking and undervolting) is having the BT issue whenever wifi is on, regardless of whether I connect the BT device while wifi is off, and regardless of whether audio is playing when the wifi is turned back on. In other words, on my device, BT really really sucks if wifi is connected, period. Any suggestions other than not to use wifi if I want to use BT?
Update: My router (Netgear wnr2000v3) seems to use 2.4 Ghz channels. Any thoughts about whether swapping the router with a dual-band or 5 Ghz channel router would work around this issue?
pcadvocate said:
My m7 (TrickDroid, elementalX 0.11 default overclocking and undervolting) is having the BT issue whenever wifi is on, regardless of whether I connect the BT device while wifi is off, and regardless of whether audio is playing when the wifi is turned back on. In other words, on my device, BT really really sucks if wifi is connected, period. Any suggestions other than not to use wifi if I want to use BT?
Update: My router (Netgear wnr2000v3) seems to use 2.4 Ghz channels. Any thoughts about whether swapping the router with a dual-band or 5 Ghz channel router would work around this issue?
Click to expand...
Click to collapse
I did pick up a new dual-band router and set up the phone to connect only on the 5Ghz band, and it worked! No more bluetooth issues at home. So if you run into this issue, a temporary workaround until (hopefully) HTC/Google provide a fix is to avoid the 2.4Ghz band.
Strangely enough, my Bluetooth range keeps decreasing with each software update. When I first bought this thing, I was generally impressed with how far I could walk from my BT speakers. Not as good as my evo 4g or 3d, but decent. Better than my gs3 and gn2.
Now I tend to make it about 5 feet or so with minor cut-outs while using apt-x. If I put my hand between the signal at 10ft, I can stop it completely. If I touch the upper-right of my phone with my thumb as I hold it in my right hand, I can kill the signal as well. Very much an antennagate going on here just like the iPhone 4.

[Q] Asus Memopad HD 7 572C K007 WiFi Bluetooth interference

Hi all,
I have bought this tablet recently. One thing that does not seem to work, is the simultaneous use of Wi-Fi and Bluetooth. When I stream a radio station, it works fine until I connect to my Bluetooth speaker. Then the app loses WiFi connection all the time, and has to reconnect all the time.
I tried other apps, all behave the same. When I use my Acer tablet (same app, same location, same network, same speaker, same radio station etc. etc. ) everything works perfect, so the Asus seems the problem here.
I narrowed the problem down to interference between Bluetooth and WiFi: when I do a speedtest, WiFi speed drops from around 35 Mbps to 5 Mbps at exactly the moment sound starts coming out og the bluetooth speaker.
Is this a known issue, , anyone experience this, how couldthis be solved?
Thanks.

Found another Bluetooth problem (this one involves WiFi)

Got a brand new amazing bluetooth 4.0 speaker so I've been playing the hell out of some music. I've been noticing the phone has been noticeably way slower in internet function.
I was getting extremely frustrated so I ran a test. Turned off bluetooth and ran a Speed Test. 31mbps down without bluetooth. and 4.5mbps down with bluetooth on.
The connection was also bouncing around all over the place and not stable with bluetooth.
WTF?

BT disconnecting while hotspot on

Hello,
from MIUI 11 i am experiencing issue with BT devices disconnecting while using wifi hotspot. Once hotspot is active everything works for a while but then BT stops working and disconnects devices.
IT IS present Also in custom roms. Anyone Has this issue and know about some fix?
Many thanks.
bakosmi said:
Hello,
from MIUI 11 i am experiencing issue with BT devices disconnecting while using wifi hotspot. Once hotspot is active everything works for a while but then BT stops working and disconnects devices.
IT IS present Also in custom roms. Anyone Has this issue and know about some fix?
Many thanks.
Click to expand...
Click to collapse
Is your hotspot in the 2.4 GHz band ? If the answer is yes, try 5 GHz.
DeepAnger said:
Is your hotspot in the 2.4 GHz band ? If the answer is yes, try 5 GHz.
Click to expand...
Click to collapse
i will try, but unfortunately the client devices does not support 5ghz
i think it's a hardware issue as it does it with every, also custom roms...
bakosmi said:
i will try, but unfortunately the client devices does not support 5ghz
i think it's a hardware issue as it does it with every, also custom roms...
Click to expand...
Click to collapse
It's mostly unrelated (at least with phone) but I recently started using a new small PC. The bluetooth disconnected too easily, even at less than 2 meters, a slight move of my head(phone) was enough to cut the music. Then I disabled the Wi-Fi interface and Bluetooth connection became robust even in the next room several meters away. That's probably because Wi-Fi and BT uses the same 2.4 GHz band.
Concerning Xiaomi smartphones, I use them everyday to listen to music while Wi-Fi is on (either in the 2.4 or 5 GHz band) and never observed a disconnection (xiaomi.eu or other custom ROMs). But I haven't tried in hotspot mode.
DeepAnger said:
It's mostly unrelated (at least with phone) but I recently started using a new small PC. The bluetooth disconnected too easily, even at less than 2 meters, a slight move of my head(phone) was enough to cut the music. Then I disabled the Wi-Fi interface and Bluetooth connection became robust even in the next room several meters away. That's probably because Wi-Fi and BT uses the same 2.4 GHz band.
Concerning Xiaomi smartphones, I use them everyday to listen to music while Wi-Fi is on (either in the 2.4 or 5 GHz band) and never observed a disconnection (xiaomi.eu or other custom ROMs). But I haven't tried in hotspot mode.
Click to expand...
Click to collapse
yes it's work as it should until i enable the hotspot, even then, it works sometimes for like an hour and then it starts... solution is airplane mode on/off and it works for a few again.
i use this a lot, as i do hotspot for kids and wife in the car, and i also work a lot remotely and this disconnects everything from BT audio to watch and it's really annoying. :/
bakosmi said:
yes it's work as it should until i enable the hotspot, even then, it works sometimes for like an hour and then it starts... solution is airplane mode on/off and it works for a few again.
i use this a lot, as i do hotspot for kids and wife in the car, and i also work a lot remotely and this disconnects everything from BT audio to watch and it's really annoying. :/
Click to expand...
Click to collapse
I just made the test, phone connected to LTE and my home routeur in the 5 GHz band. Then connected in aptX HD to "PLT Focus" headphone. After that I turned on hotspot in the 2.4 GHz and I havent observed a disconnection yet (after 15 minutes). But I live in the countryside where the whole Wi-Fi spectrum appears almost unused. I usually can detect only one other access point with a very weak signal. So, even if I was able to test for several hours, it wouldn't prove anything as your use case is very different. It may come from interferences on the same channels used by others while your vehicle moves. I don't know if we can control what channel is allocated by the hotspot but it's probably dynamic. I guess that when you switch off then on, it just select another less used channel then it works again for a while.

Bluetooth audio dropping out with Hotspot active

I just gone my Pixel 5 rooted and set up, but I've noticed annoying audio drops fairly regularly while having the hotspot on with not much going through it. Has anyone else noticed this, and is there a solution?
Nobody else noticed this issue? There seems to be shared bandwidth between the wifi and bluetooth. Fairly common for them to be on the same chip for sure but it's pretty unusable if I have tether active. Just got some new headphones that use ldac and the bandwidth requirement is so high it chokes immediately and is just unbearable garbage.
Any chance there might be a fix or is this hardware? It might have to do with using 2.4Ghz for tether. (Older devices)
BT and Wifi both operate in the 2.4ghz range.
See if tethering to 5ghz solves the problem.
My guess is that it's related to all that data transmission on two technologies that share a similar spectrum.
Could also be power consumption, being that this is not a flagship processor.
If rooted with a non stock firmware all bets are off... the firmware controls nearly all aspects of the chipsets programmable operation.

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