5.8GHz/802.11ac performance very low - Nexus 6 Q&A, Help & Troubleshooting

I am finding performance on the 5.8GHz band to be, frankly, pathwitc. I'm trying to determine if it's my phone or if it is a N6 problem.
The first image is a speedtest on 802.11n on the 2.4GHz band. The second image (same destination) is on the 5.8GHz Band with wireless AC.
My service is 100Mbit down, 5MBit up so the 2.4GHz/n results are as expected. The 5.8 GHz results are lacking. Signal level is similar between the two bands and the 5.8 GHz results are similarly crappy in the same room as the WAP (Cisco WAP371).
It isn't a signal level issue as evidenced by the last image from Signal Check Pro.
Is anyone else seeing poor performance with 5.8 GHz and AC?

I'd test a different device on that same router and compare results. I see about the same up and down results on my router on 5ghz and 2.4ghz but 5ghz doesn't penetrate though walls as well as 2.4

PDP///M said:
I'd test a different device on that same router and compare results. I see about the same up and down results on my router on 5ghz and 2.4ghz but 5ghz doesn't penetrate though walls as well as 2.4
Click to expand...
Click to collapse
The note 2 (on N) gets comparable results on both bands. Its either the phone or the router on AC.

John Kotches said:
I am finding performance on the 5.8GHz band to be, frankly, pathwitc. I'm trying to determine if it's my phone or if it is a N6 problem.
The first image is a speedtest on 802.11n on the 2.4GHz band. The second image (same destination) is on the 5.8GHz Band with wireless AC.
My service is 100Mbit down, 5MBit up so the 2.4GHz/n results are as expected. The 5.8 GHz results are lacking. Signal level is similar between the two bands and the 5.8 GHz results are similarly crappy in the same room as the WAP (Cisco WAP371).
It isn't a signal level issue as evidenced by the last image from Signal Check Pro.
Is anyone else seeing poor performance with 5.8 GHz and AC?
Click to expand...
Click to collapse
The ping difference between image_1 and image_2 shows that something on either your provider or within the app changed. A true test of N versus AC should be to something internal to your network; pull a large file from a local machine that is behind your access point. Open up a terminal (Are you rooted? Busybox installed? ) on your N6 and run your own ping tests locally and out to the internet to compare the wireless protocols.
Also, I would ASSume you've checked for other 5.8G interference/signals and verified your AP is on a different channel, yes?
--JamesT

chemguru said:
The ping difference between image_1 and image_2 shows that something on either your provider or within the app changed.
Click to expand...
Click to collapse
Or 802.11AC isn't working correctly. That hasn't been eliminated yet.
A true test of N versus AC should be to something internal to your network; pull a large file from a local machine that is behind your access point.
Click to expand...
Click to collapse
Attachments 1/2/3 speak to that. I'm running speedtest mini on my mac mini to get the numbers.
Attach 1: Wireless N in same room as WAP on 2.4 GHz
Attach 2: Wireless AC in same room as WAP (5.8GHz required)
Attach 3: Mac mini testing from/to itself.
Open up a terminal (Are you rooted? Busybox installed? ) on your N6 and run your own ping tests locally and out to the internet to compare the wireless protocols.
Click to expand...
Click to collapse
Based on attachments 1/2/3 it is to me conclusive there's an issue with AC. Have to determine if it's the phone or the WAP. That ain't done yet. This is the only 802.11ac device I have at this time, so I can't do much testing with it. The Cisco WAP won't let me disable AC protocol.
Also, I would ASSume you've checked for other 5.8G interference/signals and verified your AP is on a different channel, yes?
--JamesT
Click to expand...
Click to collapse
That would be attachment 4. No other 5.8GHz networks visible. That makes sense, my neighborhood isn't densely packed and most of my neighbors are not techheads,.

PDP///M said:
I'd test a different device on that same router and compare results. I see about the same up and down results on my router on 5ghz and 2.4ghz but 5ghz doesn't penetrate though walls as well as 2.4
Click to expand...
Click to collapse
I'm quite aware of the distance limitations with 5.8GHz. I'm doing some testing monkeying around with channels and such to see if that makes a difference.

Hmmm... Retested on a higher channel and get "somewhat" better results.
First attachment is internal. Second attachment is external. Now we're cooking with gas.
Internal 226 down / 102 up
External 110 down / 5 up
Should have checked that before posting...
Thanks all,

I find the N6's 5GHz AC to be phenomenal. I'm on an Asus RT-AC68P. I hit my ISP's bandwidth caps on speed tests.

TheAmazingDave said:
I find the N6's 5GHz AC to be phenomenal. I'm on an Asus RT-AC68P. I hit my ISP's bandwidth caps on speed tests.
Click to expand...
Click to collapse
My issue was WAP settings. I changed channels and was getting 250+ Mbits/second locally and 110 through my cable provider.

Related

[Q] SGT + 802.11n: Not enabled?

I just junked a netgear router with misbehaving wireless and nabbed a new one (Linksys WRT120N if you're curious) with N capability last night. I was hoping to get my SGT to connect at N speeds but unfortunately it keeps wanting to connect at G speed (54mbps). I've tried setting the router to N-only mode and the tablet still sees the AP, but it attempts to connect for a moment then goes back to scanning for APs. Yes, I've got great signal strength since I am sitting ~5 feet from the AP (the SGT icon shows full blue icon, my dbm is -34 for those of you that understand what it means).
Is the tablet's N capability disabled? I double checked the specs of my SCH-I800 on Verizon and Samsung's site and both say that the tablet has b/g/n wifi capability.
If you're nosy and want to know why in the world I'd even need N speeds, I have half a dozen computers in my house and some of them (thank you Microsoft) can't see the others for file transfers, so I copy the files over to my tablet from the source, then to the target. Not the best solution but I'd rather not toss up applications on all the computers and I haven't bothered buying equipment for a NAS device yet.
So... any revelations?
Samsung product info page: http://www.samsung.com/us/mobile/galaxy-tab/SCH-I800BKAVZW-features
Verizon product info page: https://www.verizonwireless.com/b2c...tail&selectedPhoneId=5565&deviceCategoryId=12
Dunno, I've got mine running on N just fine... Some of the lower end linksys routers have issues with N. You might look into dd-wrt and see if your router is compatible..
Sent from my SPH-P100 using XDA App
I've got a Linksys E3000 running Tomato, and my Tab connects. Notably, however, the Tab only supports some of the 5GHz channels and not others.
manekineko said:
I've got a Linksys E3000 running Tomato, and my Tab connects. Notably, however, the Tab only supports some of the 5GHz channels and not others.
Click to expand...
Click to collapse
Pretty sure it only supports the 2.4ghz range of N. I could be wrong, but I doubt they would have included the 5ghz range of N wireless capabilities..
pvtjoker42 said:
Pretty sure it only supports the 2.4ghz range of N. I could be wrong, but I doubt they would have included the 5ghz range of N wireless capabilities..
Click to expand...
Click to collapse
No, it supports 5Ghz range as well, just not all channels as I stated. My router is dual radio, and I have one SSID running at 2.4 and one SSID running at 5, and the Tab is connected to the 5 one.
It noticeably scans the 2.4 range before the 5 range, so first the 2.4 access points appear, and then the 5.
My personal experience was that I was able to achieve much much better download speeds by setting my router (WRT310N) to G mode only.
Before hand, when it was set to mixed I was getting speeds of like 1mbps download tops. Now I get 15+.
manekineko said:
I've got a Linksys E3000 running Tomato, and my Tab connects. Notably, however, the Tab only supports some of the 5GHz channels and not others.
Click to expand...
Click to collapse
Would you mind mentioning 'some' of these channels so I don't have to manually go through all of them one by one to see if it'll work with my SGT?
LycaonX said:
Would you mind mentioning 'some' of these channels so I don't have to manually go through all of them one by one to see if it'll work with my SGT?
Click to expand...
Click to collapse
Sure, no prob, I've got mine working on channel 36.
You can also take a look at my other post on this topic:
http://forum.xda-developers.com/showthread.php?t=1158878

[Q] Does anyone knows if it has 2.4 and 5ghz wifi?

As posted...it has the 2.4 only or the 2.4/5.0ghz wifi?
From samsungs note specifications site:
"Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct"
WLAN a-band is 5ghz area, so I think it has 2.4 and 5ghz.
thanks
Sent from my Dell Streak using XDA App
00roberto00 said:
As posted...it has the 2.4 only or the 2.4/5.0ghz wifi?
Click to expand...
Click to collapse
of course, my old galaxy s2 can connect at home whit the 5ghz wlan, so its very close that galaxy note can the same..
Hmm, anyone with a note actually able to use 5ghz wifi? I have so far been unable to.
benburch9 said:
Hmm, anyone with a note actually able to use 5ghz wifi? I have so far been unable to.
Click to expand...
Click to collapse
both of my wireless bands are showing up on my note as well as the SGS II (2.4ghz and 5ghz)
It's working on mine. Router Asus n56.
mdalacu said:
It's working on mine. Router Asus n56.
Click to expand...
Click to collapse
hmm.. mine doesn't see the 5GHz radio on my Netgear WNDR3700.
Weird.
As a side note, i do think connecting to the 2.4GHz radio is a better idea as it has better range, and the Note won't be able to utilize the extra speed of the 5GHz channel anyway.
yes it works 5.0ghz also, with d-link routers.
its faster than on the 2.4 crowded band.
Mine connects to the 5 Ghz coming out of my WRT610N running dd-wrt
Works fine on my old Belkin G router (2.4Ghz) and the new Belkin N router (5.0Ghz). So yep.
mfractal said:
hmm.. mine doesn't see the 5GHz radio on my Netgear WNDR3700.
Weird.
As a side note, i do think connecting to the 2.4GHz radio is a better idea as it has better range, and the Note won't be able to utilize the extra speed of the 5GHz channel anyway.
Click to expand...
Click to collapse
The note has only antenna, so yes, it won't fully utilize it, but I get much faster speeds on the N router than the G oh and the speed drop off at the edges of reception is much less with N.
Hmm, well my 5ghz doesn't seem to be showing up. Anyone have any idea what troubleshooting steps I should take?
---------- Post added at 11:52 PM ---------- Previous post was at 11:38 PM ----------
So just an update for people. I figured out the issue. 5ghz doesn't seem to be supported on 1xx channels, but works just fine on the lower frequency xx channels. I wonder, is this an European thing? Would there be a firmware tweak to enable the higher frequency (and higher output power) 1xx channels?
+1 on that. I would like to see it able to be used with the higher channels
I think it depends on whether the router utilizes the 20MHz or the 40MHz band. I bet the note can only see the 20MHz one.
Sent from my GT-N7000 using Tapatalk
Nope it can see.the 40 as thats the only one I have selected
Sent from my GT-N7000 using xda premium
It has both 2.4Ghz and 5Ghz I see and have connected to both on my Netgear N600
OK ppl its the channel your router has set for 5ghz. European basebands only see 5ghz channels provisioned on Europe. Check Wikipedia, specifically here: http://en.m.wikipedia.org/wiki/List_of_WLAN_channels
Simple fix... change router 5ghz channel to match region of your baseband
Using a higher or lower channel means nothing. Its finding the channel that is least crowded and has the least amount of interference.
Worked!
Atrix_E said:
OK ppl its the channel your router has set for 5ghz. European basebands only see 5ghz channels provisioned on Europe. Check Wikipedia, specifically here: wikipedia[dot]org/wiki/List_of_WLAN_channel
Simple fix... change router 5ghz channel to match region of your baseband
Using a higher or lower channel means nothing. Its finding the channel that is least crowded and has the least amount of interference.
Click to expand...
Click to collapse
I wasn't able to connect with my netgear wndr4500, but this fixed it! thanks!
Or you can always flash a firmware which supports your local 5 GHZ frequency in case you have other devices which use this frequency range. I noticed that Asian firmware supports NA 5 GHZ frequencies.
I have a Linksys E4200. I tried using WiFi analyzer and put it to scan for the exact frequencies available in the E4200 5Ghz configuration, the S2 is unable to detect any 5Ghz channels. I also tried selecting all channels, but it did not work.
EDIT: Just found an answer on another thread that worked, I manually set the channel to 36. The phone immediately detected the network. Its odd that in auto the phone cant detect it.

[Q] Can a Nook do better than 54 mbps Connection

Wondering if there is anything that can be done to get a Nook to connect at faster than 54 mbps G speeds? Does it really have a N wireless chip? I have searched and searched and cant find an answer to this.
According to the spec sheet, the wireless radio chip does support N. I'm not sure whether the software supports it
Radio: Chip ID Ti wl1271 (kernel reports wl1273) Chip supports bluetooth transmit/recieve and fm radio functions through the same antenna, but is not enabled in software drivers. Connectivity: 802.11b/g/n Security: WEP/WPA/WPA2/802.1x Mode: Infrastructure
Click to expand...
Click to collapse
I get N connectivity via CM7 - been so long since I ran stock that I don't recall.
Rodney
Yamadog, do you currently have a n router that you are trying to connect too?
I've read before that the Nook Color wifi chip only supports 2.4 GHz range (which is used for both 11g and 11n) but not 5 GHz range (which is only for 11n). If you have a b/g/n/ router running in compatibility mode for all three types then it might possibly be doing 11n only at 5 GHz and 11b/g only at 2.4 GHz and so your Nook would never be able to see the 11n signal. Try putting your router in 11n-only mode and see what happens
I'm on CM7 and I've never seen a rate above 54mbps regardless of N availability.
boomn said:
Yamadog, do you currently have a n router that you are trying to connect too?
I've read before that the Nook Color wifi chip only supports 2.4 GHz range (which is used for both 11g and 11n) but not 5 GHz range (which is only for 11n). If you have a b/g/n/ router running in compatibility mode for all three types then it might possibly be doing 11n only at 5 GHz and 11b/g only at 2.4 GHz and so your Nook would never be able to see the 11n signal. Try putting your router in 11n-only mode and see what happens
Click to expand...
Click to collapse
I have no problem with the connection its just it connects at only 54 mbps which limits download speeds to around 11 mbps Max. My computers connect at 270 to300 mbps at download at my full 24 mbps speeds. I did have a g only router and it limited my computers to only 11 mbps like the nook. Aipparently the g rating of 54 mbps is just under ideal lab conditions and not really obtainable.
According to my home N router, the Nook Color connects at 54mbps but N is in use. For some reason that is the max rate it will use. I've seen this happen with other N devices when WMM is disabled on the client.
Whoa sorry never really answered you. My router is a cheapo 2.4 ghz n but it does allow 300 mbps connections. I have to run it in b,g,n mode because our wii is only g wifi.
swaaye said:
According to my home N router, the Nook Color connects at 54mbps but N is in use. For some reason that is the max rate it will use. I've seen this happen with other N devices when WMM is disabled on the client.
Click to expand...
Click to collapse
I bet that's the case with mine too, but I haven't checked. It does pick up signals like its running n though.
boomn said:
Yamadog, do you currently have a n router that you are trying to connect too?
I've read before that the Nook Color wifi chip only supports 2.4 GHz range (which is used for both 11g and 11n) but not 5 GHz range (which is only for 11n). If you have a b/g/n/ router running in compatibility mode for all three types then it might possibly be doing 11n only at 5 GHz and 11b/g only at 2.4 GHz and so your Nook would never be able to see the 11n signal. Try putting your router in 11n-only mode and see what happens
Click to expand...
Click to collapse
802.11n operates on both 2.4GHz (20MHz bandwidth) and 5GHz (40MHz bandwidth).
Anyway, how do you guys check out the rate on the NC?
votinh said:
802.11n operates on both 2.4GHz (20MHz bandwidth) and 5GHz (40MHz bandwidth).
Click to expand...
Click to collapse
I know, but I've heard of routers that do compatibility mode by segregating g and n between the 2.4 and 5 GHz antennas
votinh said:
802.11n operates on both 2.4GHz (20MHz bandwidth) and 5GHz (40MHz bandwidth).
Anyway, how do you guys check out the rate on the NC?
Click to expand...
Click to collapse
Didnt realize all n routers did this. Checked mine and it shows my computer on 40 mhz and Nook on 20.
To check Nook connection link speed just click on the connected network and it lists all info for it.
swaaye said:
According to my home N router, the Nook Color connects at 54mbps but N is in use. For some reason that is the max rate it will use. I've seen this happen with other N devices when WMM is disabled on the client.
Click to expand...
Click to collapse
I checked and did not have WMM enabled on my router. Enabled and although the connection speed still says 54 mbps, I recorded much higher, sometimes double, the download speed vs WMM turned off. Thanks! It might be a fluke but the speeds were not far off my desktop.
Actually it is a fluke. All along I have been using the android app for speed test to check my nook and it shows roughly half the speed vs the regular desktop speed page of speed test. Oh well at least I know I'm getting all the speed out of it.
fyi the Wifi chip is capable of up to 65mbps. I've seen this rate from other tablets with TI WLAN chips on my router. I haven't a clue why the Nook Color won't go that high. Not on any N router I've connected to.
I even took a look at the tiwlan.ini file but I don't see anything apparent in there. N appears to be enabled.

G900-F real life WiFi 802.11ac performance benchmarks

Hi all
I couldn’t find detail benchmarks of S5 implementation of Broadcom BCM4354 2x2 MIMO 5G WiFi 802.11ac module and in the end decided to take u plunge and purchased Asus ac68u router. Went thru setting up 5G ac wireless network and current results look like this:
S5 connects to 5G ac network with link speed of 866Mbps
File copy from:
Gigabit LAN wired PC to Routers attached USB 2.0 HDD 29MBps (240Mbps) - bottleneck usb 2.0 interface
5G ac WiFI S5 internal storage to Routers attached USB 2.0 HDD 11 MBps (90Mbps)
5G ac WiFI S5 sandisk 128GB microSD card to Routers attached USB 2.0 HDD 11 MBps (90 Mbps)
I have 100/100Mbps broadband internet connection and S5 on speed test performs as follows:
72Mbps DL / 75Mbps UL (same connection via wired PC benchmarks at 94Mbps DL / 95Mbps UL)
I haven’t managed to achieve transfers speeds above 100Mbps from or to S5 in any combination. Can you please share your experience of S5 wifi ac 5G network performance
Related : thread by xenokc about S5 performance on 802.11ac network
Thanks
Kreso
can you test with no encryption? wep/wpa completely off.
Isriam said:
can you test with no encryption? wep/wpa completely off.
Click to expand...
Click to collapse
Yes, i have tried that, but there was no change. Router firmware is upgraded to the latest version / wireless test were done in close proximity (1 meter) to the router without any physical obstacles between (clear line of sight)
I'm really on a mission to achieve transfers speed in a range of 350Mbps-400Mbs on local LAN (which should be doable) but i cannot get pas 100Mbps!!
i'll try to test as i know AC should be able to do it.
..
fffft said:
802.11 ac provides a theoretical maximum stream speed of 433 Mbps or 900 MB/s across eight streams. That is under ideal conditions - maximum signal strength, zero interference, zero processing overhead and zero packet overhead. Many router 802.11ac chipsets only support four streams and due to real life channel contention, you aren't likely to see more than two or three 160 Mhz channels chopping that maximum speed to about 250 MB/s. All of those speeds assume channel bonding and quite a few routers can't bond 80 Mhz channels cutting that speed in half again (125 MB/s). Then you have real world losses due to signal attenuation, antenna inefficiencies and interference.
The S5 was the first smartphone to support two MIMO streams. But two is not three, so lop another third off our speed figure (or lop two thirds off for the iPhone 6 which only supports one stream). You simply won't achieve your goal with the S5 or any other current smartphone. 350 Mbps is the upper end of the maximum speed you might expect to see from a high end MIMO PC card under ideal conditions in the same room.
In real life and through a wall, you should expect considerably slower transfers. And the type of traffic matters too e.g. TCP traffic overhead often reduces speeds three fold over UDP streams in router speed tests.
.
Click to expand...
Click to collapse
Thanks for detailed feedback, but then there is no benefit from implementing ac standard or 2 spatial streams suporrted by broadcom chipset when performance is comperable to WiFi n standard? But then again how did those guys here managed to pull of such results:
382MbpsDL
or
436Mbps
whit same hardware setup?
..
what kind of latency differences did you see between the wifi phone and your pc to the same server? i'm assuming speedtest.net or something like that?
This is strange as for my G900I I've been able to run an Internet speedtest at over 11 MBps (88mbps) over wifi on wireless N at my university which I imagine would have multiple connected devices. Wireless AC should be able to at least match the 88 mbps I had achieved.
Isriam said:
can you test with no encryption? wep/wpa completely off.
Click to expand...
Click to collapse
No, don't do this. You must setup a WPA2 security encription to get maximum rates on WiFi N and AC.
Then, remove storage bottlenecks. Don't use a external HDD connected to a USB2 port. Much less on the same router, since USB performance is much lower on those devices. You will need to use 2 devices on the same LAN. One wired for maximum throughput tests. A ramdisk or a SSD on the host would help too, since HDDS are limited to 120-80Mb/s transfer speeds.
If you are going to use a file copy as measure, make sure you make it into the internal SD card of the phone, since external will be limited to around 8-12mb writes depending on the card quality.
To test networks you would need ramdisk to ramdisk copies, but I don't know how to setup this on android.
This is rather interesting to follow
iPerf is available on android.
Quick measurement gave me ~110-169 Mbits/sec using default values on 40mhz WiFi N 5ghz setup.
drapos said:
iPerf is available on android.
Quick measurement gave me ~110-169 Mbits/sec using default values on 40mhz WiFi N 5ghz setup.
Click to expand...
Click to collapse
Thumbs up. Finding someone that uses IPERF for measuring proper network performance is golden. It irritates the heck out of me to find video's of people using ookla to measure their network speed, or like the OP, measuring against USB2. That's like measuring the speed of your new 600MB/s SSD installed on a SATA 1 controller and wondering why you are not seeing a significant improvement.
iperf is a little more complex than ookla though, and thats usually why. same reason most of us dont compile our own custom roms
really, there isn't much need to get over 100mbs on wifi for 90% of the public.
Isriam said:
iperf is a little more complex than ookla though, and thats usually why. same reason most of us dont compile our own custom roms
really, there isn't much need to get over 100mbs on wifi for 90% of the public.
Click to expand...
Click to collapse
Just picked up the s5 because no store will sell me the note 4 retail price.
Linksys WRT1900ac stock firmware, 5Ghz a/c connected @ 300Mbit
From the phone to wired linux box @ 1000Mbit
187 Mbit up 207 Mbit down but of course it fluctuates. I don't use wifi for anything that requires that much bandwidth anyway, but I do get my full internet speed of 175/30 using the phone.
This post is rather old, but some of us may still be interested.
I was looking for an alternative to usb cable to transfer files fast between a pc and galaxy S5..
I've used a wifi-300 stick connected to usb port on PC: TL-wn821N, and configured my S5 as a mobile access point.
An ftp server is running on the phone and an ftp client on PC. i am accessing the AP via AirmoreAP hotspot, with wpa encryption.
I am watching the download rate via crystal internet meter for windows.
And this is the result: 64mbps/56 mbps (DL/UL) UL reading a microsd card on phone and writing to sata2 internal disk on pc.
I am wondering if I can reach much faster speed with a wifi-ac stick.

How to Double the WiFi Speed of your OnePlus 3/3T

Hello guys;
I read this article. and tried.
https://www.xda-developers.com/how-to-double-the-wifi-speed-on-your-oneplus-3-3t/
I used root explorer, modified WCNSS_qcom_cfg.ini (located in /system/etc/wifi)
I changed "gChannelBondingMode24GHz=0" to "gChannelBondingMode24GHz=1"
I restarted the phone. It connected to wifi and still my 2.4ghz band looks 72 mbps connection speed.
When i use 5ghz band it looks 433mbps speed.
What can i do? :good:
It only helps if your router can do wider signal (20MHz vs 40MHz) as well. 5GHz is irrelevant here, the tutorial only involves bonding 2.4GHz channels.
Do a speedtest to see if there is any difference.
Well, as the article already says: Under Certain Conditions. And it also states that it is not recommended in area's with a large number of networks. The 2.4GHz band is way to crowded.
I guess your access point/router doesn't support 40 MHz channels. Also seeing that your 5GHz is "limited" to 433Mbps, which probably means that it is a little bit older AP/router?
Why do you even want 2.4GHz slowspeeds (Even when doubled) when you have 5GHz which is faster already?
I tried it. At my phone it works.
After changing the value you should do a restart
It works for me too

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