Develop Bugs

[Q] Do I need to reflash my WiFi?

So after I successfully rooted my phone, I did flash the radio and WiFi. Custom ROMs have worked pretty well. But lately, I have noticed (and I am not sure to what degree this was going on before) that my WiFi signal is quite bouncy. This is the case no matter what WiFi access point I go to.
Is it possible that something with my phone got messed up? Is it recommended that I reflash the WiFi? Should I just try a different ROM?
Any info would be greatly appreciated.

By "WiFi" do you mean "WiMax?"

SilverZero said:
By "WiFi" do you mean "WiMax?"
Click to expand...
Click to collapse
I mean whichever radio is responsible for my WiFi... so is the WiFi radio and the 4g radio one in the same? If so, the question still stands... would flashing it again possibly fix fluctuation in signal?

Im still having this problem. Anyone else? In fact, I was at a friend's house and was using his WiFi router for access and it was slow. I told him we probably need to reboot his router but he didn't think so. My speed test with his router was 800Kbps - ~ 1Mbps... and I know I was testing his WiFi... not my 3G.
He then testing from his iPhone 3GS and was getting ~ 7Mbps (about what should be expected)... so clearly the problem was my phone.
Did a clear cache and dalvik and still not better. My radio is still bouncing.
Anyone have any ideas?

???
As far as I know, there is no such radio for WiFi???
WiFi improvements come through software updates from HTC, but I've never seen a flashable update??
You can only flash the evo radio and wimax.

Wifi on the Evo sucks. I have the range issue regardless of what rom I use. My iphone doesn't have an issue.
Sent from my PC36100 using XDA App

gqstatus0685 said:
Wifi on the Evo sucks. I have the range issue regardless of what rom I use. My iphone doesn't have an issue.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
This must be hit-or-miss. I vaguely remember some others complaining about WiFi (wtf..lol). I get a great connection at my house, I can use WiFi out in the yard, and the only time I've gotten less than 8megs down I was also watching a movie on Netflix and dl'ing a torrent.. and even then I got over 4m/s

my wifi was fine until i flashed to this latest leak.

[Q] Wifi Problem

Guys, my wifi is acting really really weird lately.
I flashed aokp m4 with franco r98, and it works perfectly with my home wifi. But at school, it would not connect even though in wifi settings the phone can see the wifi and its full bars. I stood next to a friend with a gnex unrooted and stock Rogers rom, and he has full bars. While on my phone, it just says that the network is saved. I have been able to access the wifi before back when I had stock. So I decided to try my cwm backup of my stock rooted and still no use. wont connect.
Last try i made was to reflash google 4.0.2 stock image and lock bootloader, and try it with the factory rom. NOPE, no help at all..
Right now, Im back home on my wifi, full bars, and no problems watsoever running m2 with r98 again. but still...why???!!!
Is it hardware issue? How can I test and check!!! i really need this solved...as wifi is like a necessity in life these days LOL
Also, I tried foxhound before i went to stock, and still wont connect to school wifi.
One more thing, there is like one spot to two in school that i would get 1 tiny dot of wifi, whereas every other phone around me including the ipods have full bars...SOooo, any fixes?

anyone help ？
Sent from my Galaxy Nexus using xda premium

wow. cant believe zero opinions on this？
Sent from my Galaxy Nexus using xda premium

Before you flashed your custom rom did it work at school?
If it works at home, then it probably isn't a hardware issue... maybe check your wifi settings and try putting the frequency at 2.5 Ghz instead of auto? Or try to put it at 5.0 Ghz?
Maybe there are some Wi-Fi apps you can try searching for in the market that gives you more information?
You sure you're typing the correct password?

ellimistx99 said:
Before you flashed your custom rom did it work at school?
If it works at home, then it probably isn't a hardware issue... maybe check your wifi settings and try putting the frequency at 2.5 Ghz instead of auto? Or try to put it at 5.0 Ghz?
Maybe there are some Wi-Fi apps you can try searching for in the market that gives you more information?
You sure you're typing the correct password?
Click to expand...
Click to collapse
a week before I was on aokp m4 with r98 and things were fine. this week, the problems began. tried changing the accepted frequency, tried srock rom, tried stocj rooted, tried using someone else's sign in info. what wifi app should i get...thanks for the reply
Sent from my Galaxy Nexus using xda premium

I'm not exactly sure about the wifi diagnostics app, I just got my phone a couple days ago
I'd say just download some random one's for now. See if the signal that it's reporting is different. Maybe long press the network name and select "forget", then try again?
Are you not getting enough bars? Or can you just can't connect to the AP?

[Q] Slow wifi on CM9

Yesterday, i have unlocked and rooted my phone to put CM9 nightly on my galaxy nexus[GSM]. Everything works fine but i have one issue, the wifi speed is really slow on my phone.
this is the rom that i flashed on my phone.
http://forum.xda-developers.com/showthread.php?t=1398495
I have tested on speedtest.net and i am getting less than 0.5mpbs. I have looked over my router and other devices, they are getting 5mpbs. Is this an issue with CM9? On stock settings for the nexus i get 5mpbs.
Is there a fix around this?

What is your broadband connection rated at? 5/10/15/20...mbps? If you are rated at 15 or 20 and your only getting 5 on other devices you could have a router issues.
Does the speed get any better when you are within 5 feet of the router?
Do you have multiple Wireless Routers/AP's?

there is no difference if i am beside or 20 feets away from it. I still get less than 0.5 mpbs. There was no issue when i was using the stock version of GNexus 4.0.2.
I only have one router.
I have managed to fix the problem, can a mod please delete this thread?

I have the same problem. When I restore back to stock, the problem goes away. I do have the FD01 radio firmware installed.
Sprint GN, Tapatalk2

DTMLY said:
there is no difference if i am beside or 20 feets away from it. I still get less than 0.5 mpbs. There was no issue when i was using the stock version of GNexus 4.0.2.
I only have one router.
I have managed to fix the problem, can a mod please delete this thread?
Click to expand...
Click to collapse
How did you fix it? You could at least share it with all the people who tried to help

Hi folks
I was having the same problems. I just upgraded to 9-20120511-NIGHTLY-maguro and my wifi issues have gone.
Sent from my Galaxy Nexus using xda premium

Try rebooting your router. I've been using CM9 for weeks now and the only time I've had issues were with my router.
This isn't even the fastest.. just a random test. CM9 Nightly 5/11.
Sent from my Galaxy Nexus using Tapatalk 2

NCguy said:
How did you fix it? You could at least share it with all the people who tried to help
Click to expand...
Click to collapse
I have the same problem after I assigned my phone a static IP on my home router. Search on MAC randomization for this issue. There are several kernels that fix this. I believe Franco, Trinity, and Imoseyon will work. I wish the stock cm9 kernels would get fixed for this issue.
Sprint GN, Tapatalk

Do you have some sort of QoS setting on your router keeping it from providing the speed to certain devices or something like that? I agree with the others, first thing I would do is factory reset my router.

Having a similar issue my epic is doing 25mbps on a 30mb line but both of my gnexs on different roms are only getting g 10-12????
Sent From My Sprint Galaxy Nexus via XDA Premium

I've also noticed that my Wifi performance is seriously degraded and very slow. At first I thought it was my connection, but further testing narrowed the issue to my Gnex only. I get very long 1000+ms ping times using the speedtest app and get a stuttery 1-2mb/s down and up, when every other device in my house (6+) is showing upwards of 20mb/s down and 2mb/s up. I have replicated the horrible ping and download times from various wifi hotspots.
To test further, I reverted to a backup nightly with no change. I went back as far as my 04/29 build and the problem remained. Maybe I just didn't notice it before, but I'm not certain. I have even flashed other ROMs such as AOKP and speedtest showed superfast results.

bryanus said:
To test further, I reverted to a backup nightly with no change. I went back as far as my 04/29 build and the problem remained. Maybe I just didn't notice it before, but I'm not certain. I have even flashed other ROMs such as AOKP and speedtest showed superfast results.
Click to expand...
Click to collapse
Wonder what AOKP did to it because myself and many others finds wifi to suck on the stock roms.

The wifi problem goes away when i use a kernel that addresses MAC randomization.
Sent from my Sprint Galaxy Nexus CDMA using Tapatalk 2

Figured out the cause of the slow wifi
I found out what the issue was with my wifi slowness and awful ping times.
I re-installed the latest Nightly and this time I did a "wipe data" (wiping out all of my apps) and my speedtest results were awesome again. Essentially a clean install. After reinstalling my apps one by one, I've been running speedtest each time and found that Doubletwist/Airsync was the cause of my slowness. Uninstalling DoubleTwist/AirSync and then rebooting fixed the speed/ping issue right away. HTH.

bryanus said:
I found out what the issue was with my wifi slowness and awful ping times.
I re-installed the latest Nightly and this time I did a "wipe data" (wiping out all of my apps) and my speedtest results were awesome again. Essentially a clean install. After reinstalling my apps one by one, I've been running speedtest each time and found that Doubletwist/Airsync was the cause of my slowness. Uninstalling DoubleTwist/AirSync and then rebooting fixed the speed/ping issue right away. HTH.
Click to expand...
Click to collapse
You could also try AirDroid (https://play.google.com/store/apps/details?id=com.sand.airdroid) as an alternative to upload/download files to your phone.
Works great for me ^_^

[Q] Why does JB 4.1.2 not connect to wifi properly??

Hello all. I have been playing with the new 4.1.2 JB ROMs on my 7100 Note2 and have been having one major and repeatable issue, that I have seen mentioned a few times by others, with no obvious resolution.
I have tried the various leaks of the 4.1.2 that were floating around (the stock one, Wannam and Android Revolution HD 5) and now I have just tried the final Polish PLAY version of 4.1.2 as well as the latest Wannam as well. All do/did the same thing:
They can see my wifi SSID and they can BEGIN to connect and "obtaining IP address" comes up. EITHER they then fail and tell me connection is poor and to try again, or they will connect and then drop within a minute. Just today I made some kind of movement on this by trying different kernels. Perseus25 gives up and tells me signal is poor. Perseus27 WILL actually connect and stay connected but can never actually surf anywhere. Note2Core will either connect or tell me my authentication is wrong (which it isn't) and when connected, it too refuses to surf. RedPill is same as Note2Core. BTW, even when they DO connect, they do so at a measly 5Mbps (and cant find internet)
Now, you are all probably thinking "his wifi is rubbish!" but I REALLY cant see how that can be! Firstly, there are other users out there who have mentioned this in a few threads but I have never seen any useful replies as to a solution (or a cause!). But also, if I restore back to my usual ROM which is Android Revolution 4.1 HD (=JB 4.1.1) with a perseus25 kernel, then I connect immediately and stable at 54Mbps and works great. (all it takes is a CWM restore back and it is working 100%. same location in my office, same router, wifi etc!) Plus same wifi serves two laptops, wife's Galaxy S2, and has seen many iphones, ipads, and other laptops all fine.
Back in the days of the leaked 4.1.2 I DID try jumping wifi channels on the router just to prove a point. Every single one did same thing.
Flashing procedures have been the 'standard' method: boot into CWM, wipe data/cache/dalvik/battery, then flash new ROM, boot OK.
I had assumed that the early leaked version of the ROM had some bug but very disappointed to find same behavior in the Polish PLAY version which is final release AFAIK. It makes all these subsequent ROMs based on it totally useless to me.
I even extracted and flashed the modem.bin from my working ARHD4.1 ROM but nothing changed. So modem and kernel same as working systems but something clearly broken somewhere.
If you are one of the other folks out there who also has this issue, might be helpful if you give some info about your setup, so somebody clever out there can help us join the 4.1.2 club?!
Any thoughts?
(setup: UK VirginMedia 120Mbps down/10Mbps up. Cisco Linksys E4200 router. about 10 feet from router with one 'paper wall' between! ARHD4.1 finds full signal and surfs fast. 4.1.2 totally unusable)
Help me Obi-Wan Kenobi(s), you are my only hope!

I have noticed similar problems on my SGH-i317 using CleanROM 3 (4.1.2). The wireless connection randomly drops while browsing. This happens even in areas with excellent signal quality.

-Sn1PeR- said:
I have noticed similar problems on my SGH-i317 using CleanROM 3 (4.1.2). The wireless connection randomly drops while browsing. This happens even in areas with excellent signal quality.
Click to expand...
Click to collapse
Thanks for contributing. Helps prove the point that it is something in the new ROM as our wifis are fully functional otherwise. I have matched the modem and kernel from my working 4.1.1 system and still failing....
I hope we get some help.

I also got this problem from latest WanamLite & Omega ROM. Both are using 4.1.2 JB.
Wifi detected and connected but always obtaining ip address..
Sometimes it tooks so long and can get ip, but still cannot access internet or can't even ping different ip address from the same network.

hendry said:
I also got this problem from latest WanamLite & Omega ROM. Both are using 4.1.2 JB.
Wifi detected and connected but always obtaining ip address..
Sometimes it tooks so long and can get ip, but still cannot access internet or can't even ping different ip address from the same network.
Click to expand...
Click to collapse
strange, i've been running omega 7 to 7.4 but dont have any problems with wifi.
i've connected to home wifi (TP-Link), workplace (Cisco/Linksys) and some coffe-shops without any problem.
most of them using WPA2 or WEP. sometimes obtaining ip address with WEP could take a lil longer about (10-15sec) but always a success.
but never used wanamlite for my note2 so cant comment any, srry

I'm not saying the issue is in the wifi itself, but it can probably be fixed by disabling n mode and only using b and g. Also try to make sure the phone gets assigned a static ip.
Issue seems to be 4.1.2 related.
Sent from my GT-N7100 using Tapatalk 2

yes.. i'm also facing the same problem.. whenever i flashed custom rom based on 4.12, like wanam 2.0, 2.1 n crash rom, i cant connect to the wifi.. it always shows optaining ip address and it never connected.. now i m using stock rom 4.11 n there is no problem to connect to the wifi..
i juz wonder why it happens to several devices only?

I having the same wifi problem with 4.1.2 firmware...revert back to 4.1.1 wifi connection run flawlessly..strange !

I have tried switching OFF the 5GHz signal from my modem and sticking to 2.4GHz.
Have also tried turned off N and locked it down to just B & G.
Have tried turning off the WMM in the QoS section.
All of these have been mentioned around the place as possible solutions, and I am afraid none of them changed anything at all for me. Also read that one person had his wifi issues resolved when he dropped WPA2 security and went back down to WEP. This is an unacceptable solution to me as I don't want to make my WiFi so insecure, and also, what happens when I go to my friends and family who all (rightly) use WPA2?! So wont even be trying that.
I am actually getting a new Virgin Media Superhub in about 2 weeks so will revisit the issue then to see if 4.1.2 just doesn't like my Cisco router.
Just weird. And frustrating as wanted to move on to 4.1.2!

have you tried changing the channel on your n router?

Ok. I here is my evo 4G lte story. I flashed cm10 as soon as I got this phone a month and bit ago. I totally had wifi connectivity problems at work and at my house. One worked better and one had to be spammed to connect 20 times to connect and would still occasionally drop. I went to sense is from there and found it to be reliable. Though I just moved to the ota, I find this sense to be just as reliable.
In all. The new ota let me move to jb with reliability.
Sent from my EVO using xda app-developers app

I dun think it is about router.. because with 4.11, I found no problem to connect.. when I use 4.12, I cant connect to any other wifi network..
Sent from my GT-N7100 using xda app-developers app

Why not all people getting this wifi problem using 4.1.2 ROM? Does the device something problem? But why going back to 4.1.1, wifi problem dissapeared and can connect directly?
Really2 weird....
Sent from my GT-N7100 using xda premium

hendry said:
Why not all people getting this wifi problem using 4.1.2 ROM? Does the device something problem? But why going back to 4.1.1, wifi problem dissapeared and can connect directly?
Really2 weird....
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
yes.. i also wonder why this happen..

I also have exactly the same problem. I have tried every single 4.1.2 ROM but I can't keep my wifi working. I have had to go back to 4.1.1 as well. My wifi is perfect on 4.1.1. I use Cisco e4200 with ddwrt flashed. Very frustrating!

kobykoby said:
I also have exactly the same problem. I have tried every single 4.1.2 ROM but I can't keep my wifi working. I have had to go back to 4.1.1 as well. My wifi is perfect on 4.1.1. I use Cisco e4200 with ddwrt flashed. Very frustrating!
Click to expand...
Click to collapse
have u tried 4.12 stock rom before u flash 4.12 custom rom?

All 4.1 2 rom having same wifi problem for me..i guess the problem from firmware itself ...
Sent from my GT-N7100 using xda premium

Try changing channels to below 11 if you're in Europe and the router uses channels above.
Sent from my GT-N7100 using Tapatalk 2

I`am on ARHD 6.0 currently and i never had problems with wifi on all the previous ARHD rom`s. Try doing a full wipe or at least also do a system wipe (and wipe cache/dalvik cache, data/factory reset and format preload) before flashing a rom. I`am sure that will help guys.

i have same problem no ip adressing and when i set statique ip no internet
i test Omega wanam mondx... same issue
omega 6.1 works great but at 7 version no internet by wifi, but ok in data
i have a logcat if help (catlog app)
i test rest router, change wpa2 to wpa, change channel, wps, super wipe (allll format) every omega rom, set mac adress in router with static ip
i become crazy why not on all device its n7100 XEF french buy on amazon
Sorry for my poor english

[Q] WIFI Speed Issues

Hi Folks,
Looking for some help please, my wife got the new xperia z1 compact last week but has been having issues with it since she got it when connected to wifi.
The problem is the internet connection speed is less than 5mb when connected to the wifi, now the internet in the house that the issue is with is 120mb connection and I have tested several other smartphones, tablets and laptops and everything else is working fine.
I have tried deleting the wifi connection and reconnecting it made no difference, we done a factory restore of the phone and it made no difference either.
We then took the phone back got a replacement handset and brought the phone home, and guess what the exact same issues still even with this new handset.
any ideas please folks as this is really frustraing 4G connection is faster when she goes outside

Can you be more clear. Is the connection speed (wifi) only on the phone 5MBit/s or does the connection speed of the whole wifi network drop to 5MBit/s when your wife is connected?

zxz0O0 said:
Can you be more clear. Is the connection speed (wifi) only on the phone 5MBit/s or does the connection speed of the whole wifi network drop to 5MBit/s when your wife is connected?
Click to expand...
Click to collapse
The whole wifi network is fine and stable its only the phone thats not able to get above 5mbs
The strange thing was the replacement phone tested fine for speed as soon as we unboxed it but 1 hour later it was right back to where we started from

How did you measure the speeds? With the app 'Speedtest'?
How many bars does the wifi connection show on the phone? Is it possible that the phone is downloading data in the background?

zxz0O0 said:
How did you measure the speeds? With the app 'Speedtest'?
How many bars does the wifi connection show on the phone? Is it possible that the phone is downloading data in the background?
Click to expand...
Click to collapse
yes I used the speedtest app to check the speed, the wifi signal shows as full strength on the phone.
I have checked to see if there was anything running in the background and there was not
I also checked this over several days incase it was a data or update that was happening to the phone but still no change

Well that's weird. And another phone (on the same spot) has faster connection? Have you tried on different wifis (e.g. at work)?

Yeah tried other phones and a tablet and all working fine
Unable to connect to a wifi at work as it's locked down
No other open wifi connections avail near me either just now

Ok so just wiped the phone again and set up as a brand new device
New google account etc
Only downloaded speed test app and everything was looking great and the speeds were 50mb
Then the phone updated infoeye and since that update was Downloaded and installed the wifi speed is now back to no more than 5mb

Then try to disable infoeye and test again. Speed should be high again if I am not mistaken.
----------
tapatalked from Android

Tried that and made no difference. Phone returned and the wife has gone back to a different handset which is working

Shebe7 said:
They can add as many gadgets to the same wifi, the Z1 Compact isn`t meant to support more. I tried it on different wifis, in different towns, it`s almost the same thing
Click to expand...
Click to collapse
What do you mean? I am on a wifi with atleast 20 other devices and I don't have any problem.

i got a pretty similar issue. It's not only the internet-speed, it's wifi-speed in general. Tried to copy at 200 MB file from my NAS via wifi to the phone. Speeds go up to 2 MB/s for short, but suddenly drops to about 300-500 kb/s and stays there. Copying the same file to other devices (tablet, Laptop, HTC One) runs with 2,5 MB/s stable.

Try/internet speed Master from play store worked for me
Sent Using TapaTalk Pro on my Infamous Nexus 7 flo

Seems there are some wifi performance degradation with some WIFI 802.11g routers.
I have 1 router which I could not reach more 2 mbit, no matter of signal.
wapvirus said:
Try/internet speed Master from play store worked for me
Sent Using TapaTalk Pro on my Infamous Nexus 7 flo
Click to expand...
Click to collapse

Mines also stuck at 2mb
Sent from my D5503 using Tapatalk

45mbit here, pretty much full speed of the connection
Sent from my D5503 using Tapatalk

Back at full speed today
Sent from my Nexus 7 using Tapatalk

And now back to unusable
Sent from my Nexus 7 using Tapatalk

WasherUK said:
And now back to unusable
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
I have the same issue since some days... someone a solution for it?

The new firmware fixed mine
Sent from my D5503 using Tapatalk