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Wifi drops on Galaxy S 19000 CM nightly

Hi,
As the title states the wifi stops working after a few minutes. It says it is connected and the signal strength is good but I have no access with the browser or anything web related.
If I turn the wifi off and on again it works for a little bit.
This is the 3rd ROM I have tried with the same issue,
Any ideas are welcome ?

Wifi drops
Haven't resolved this yet

Getoffthepot said:
Haven't resolved this yet
Click to expand...
Click to collapse
Anyone able to help?

[Resolved] Weird Internet Problem

Hi,
This is a weird Internet problem so I think this is the best place for this.
I have a 1Mbps broadband connection with a Modem+Router.
Now I get download speeds upto 120-130KBps on my PC (connected via LAN), my laptop (via Wifi) and my phone, the Galaxy S2 I9100 (via Wifi again) and my sister's Galaxy S3.
I get smooth surfing speeds with normal loading pages on my PC & Lappy.
The problem is that surfing speed on my and my sister's phone is extremely slow. Be it the Facebook app, Tapatalk app, normal pages in the Stock Browser, Opera Mini, anything.
Everything is slow as a snail.
No background downloads, cloud backups or any network hogging resources run in the background.
Both phones are stock, unrooted, untouched, JB 4.1.2, so no ROM troubles.
Does anyone have an idea as to what the problem might be?
Because it is really weird that download speeds are fine but surfing speeds suck so bad.
Also, if it might help, 3G works excellent on both devices.
And recently I factory resetted/formatted my phone, the S2.
Written by my Silver Axe

Maybe your wireless connection is slow. Is there any downloading in background? Try disconnect one of your connected devices

vj_dustin said:
Hi,
This is a weird Internet problem so I think this is the best place for this.
I have a 1Mbps broadband connection with a Modem+Router.
Now I get download speeds upto 120-130kbps on my PC (connected via LAN), my laptop (via Wifi) and my phone, the Galaxy S2 I9100 (via Wifi again) and my sister's Galaxy S3.
I get smooth surfing speeds with normal loading pages on my PC & Lappy.
The problem is that surfing speed on my and my sister's phone is extremely slow. Be it the Facebook app, Tapatalk app, normal pages in the Stock Browser, Opera Mini, anything.
Everything is slow as a snail.
No background downloads, cloud backups or any network hogging resources run in the background.
Both phones are stock, unrooted, untouched, JB 4.1.2, so no ROM troubles.
Does anyone have an idea as to what the problem might be?
Because it is really weird that download speeds are fine but surfing speeds suck so bad.
Also, if it might help, 3G works excellent on both devices.
And recently I factory resetted/formatted my phone, the S2.
Written by my Silver Axe
Click to expand...
Click to collapse
That is a very slow connection.
But you need to troubleshoot it by first: make sure that you have a secure connection between your router and your devices.
So make sure your router is running wpa or wpa2 with a good key.
Next: you should disconnect each device and test network speeds to determine which device is the one causing the issue.
Then if that does nothing you should make sure that you are not too far from your router.
Because that would cause it to drop packets and slow down the transfer speed.

It might seem slow as per worldwide standards, but it actually is good enough to watch YouTube videos at 360p without buffering
Also this is a recent problem and before this everything worked absolutely well.
The security is set as WPA/WPA2.
I've tried sitting next to the router, doesn't make a difference.
I'll check connecting each device one at a time though.
Written by my Silver Axe

vj_dustin said:
It might seem slow as per worldwide standards, but it actually is good enough to watch YouTube videos at 360p without buffering
Also this is a recent problem and before this everything worked absolutely well.
The security is set as WPA/WPA2.
I've tried sitting next to the router, doesn't make a difference.
I'll check connecting each device one at a time though.
Written by my Silver Axe
Click to expand...
Click to collapse
I luv the link in your sig! XD
Tha crossroads.

how good is your connectivity >?>
vj_dustin said:
Hi,
This is a weird Internet problem so I think this is the best place for this.
I have a 1Mbps broadband connection with a Modem+Router.
Now I get download speeds upto 120-130kbps on my PC (connected via LAN), my laptop (via Wifi) and my phone, the Galaxy S2 I9100 (via Wifi again) and my sister's Galaxy S3.
I get smooth surfing speeds with normal loading pages on my PC & Lappy.
The problem is that surfing speed on my and my sister's phone is extremely slow. Be it the Facebook app, Tapatalk app, normal pages in the Stock Browser, Opera Mini, anything.
Everything is slow as a snail.
No background downloads, cloud backups or any network hogging resources run in the background.
Both phones are stock, unrooted, untouched, JB 4.1.2, so no ROM troubles.
Does anyone have an idea as to what the problem might be?
Because it is really weird that download speeds are fine but surfing speeds suck so bad.
Also, if it might help, 3G works excellent on both devices.
And recently I factory resetted/formatted my phone, the S2.
Written by my Silver Axe
Click to expand...
Click to collapse
the internet browsing speed varies as per the connectivity over wifi... if ur signal level is poor the speed will be much slower than u connection speed.. so check ur wifi range ....

Lgrootnoob said:
I luv the link in your sig! XD
Tha crossroads.
Click to expand...
Click to collapse
Hehe, thanks
Lgrootnoob said:
Next: you should disconnect each device and test network speeds to determine which device is the one causing the issue.
Click to expand...
Click to collapse
Well I tried the individual connection as well. And the problem persists on both the S2 & S3.
The laptop works just fine. But the surfing on the phones is really bad! While surprisingly downloading or buffering a video is fine.
This is so weird!
I open the Youtube app and it opens slow as hell, loads thumbnails in years then I click a video it takes more time to load but then plays without a hiccup on HQ..
bhaveshmaloo said:
the internet browsing speed varies as per the connectivity over wifi... if ur signal level is poor the speed will be much slower than u connection speed.. so check ur wifi range ....
Click to expand...
Click to collapse
Already tried sitting next to the router as well. No luck.

vj_dustin said:
Hehe, thanks
Well I tried the individual connection as well. And the problem persists on both the S2 & S3.
The laptop works just fine. But the surfing on the phones is really bad! While surprisingly downloading or buffering a video is fine.
This is so weird!
I open the Youtube app and it opens slow as hell, loads thumbnails in years then I click a video it takes more time to load but then plays without a hiccup on HQ..
Already tried sitting next to the router as well. No luck.
Click to expand...
Click to collapse
Next up is to try a different router or a neighbor's setup to determine if there is an issue with the antenna (or software) between your router and phones.

Lgrootnoob said:
Next up is to try a different router or a neighbor's setup to determine if there is an issue with the antenna (or software) between your router and phones.
Click to expand...
Click to collapse
This will take some time since finding another router is tough around here.
I'll try to find another wifi to connect to.
If I make a wifi hotspot on the S3 and connect my S2 to it, will it be a suitable way to test?
Written by my Silver Axe

vj_dustin said:
This will take some time since finding another router is tough around here.
I'll try to find another wifi to connect to.
If I make a wifi hotspot on the S3 and connect my S2 to it, will it be a suitable way to test?
Written by my Silver Axe
Click to expand...
Click to collapse
yep.
If it works fine then the router is the issue. (Ping tests)
If it doesn't work fine then you need another router to test.

vj_dustin said:
This will take some time since finding another router is tough around here.
I'll try to find another wifi to connect to.
If I make a wifi hotspot on the S3 and connect my S2 to it, will it be a suitable way to test?
Written by my Silver Axe
Click to expand...
Click to collapse
Wifi is weird(it always has been) on all the samsung roms.
Like a user once reported that he sees constant transfer on his phone at his home network but not at work and he even used droidwall to block all connections.

I don't know about that. This problem has occurred only once before and lasted 2-4 days, then automatically resolved. This time it's been almost a week.
Apart from these 10 or so days, I have never had an issue with Wifi.
Also I tried browsing on a wifi hotspot by making S3 a hotspot and using on S2 and vice versa, both worked great.
So it's definitely some issue with the router. But I cannot call someone to replace it because my laptop works just perfect on it's wifi!
So maybe some settings have been altered or messed with?
I can get you some screenshots of the modem interface page that my network provider gives.

This solved my problem.
Linking so that someone else with this annoyingly stupid problem can find a solution too!
ThinkDigit Post

[Q] HTC ONE X...avoided poor internet connection...help!

Hello all members,
My device has this problem, when I try to connect to WiFi it says "Avoided Poor Internet Connection", unlike other phones which say Left Click>Advanced>Untick the avoided poor internet connection, my HTC seems to be no option. I tryto search in the device for another options that might could do but i havent find none...
I have eard that HTC One X use to have some poor wifi signal but this is NOT the case...the wifi signal is excellent!
This issue is in fact a device problem (hardware or software) or is more a problem with my router?
Im running the original stock ROM and have all the updates available installed on it...
Can anyone help me about this problem?
Thanks in advance for the help given...

kelsinni said:
Hello all members,
My device has this problem, when I try to connect to WiFi it says "Avoided Poor Internet Connection", unlike other phones which say Left Click>Advanced>Untick the avoided poor internet connection, my HTC seems to be no option. I tryto search in the device for another options that might could do but i havent find none...
I have eard that HTC One X use to have some poor wifi signal but this is NOT the case...the wifi signal is excellent!
This issue is in fact a device problem (hardware or software) or is more a problem with my router?
Im running the original stock ROM and have all the updates available installed on it...
Can anyone help me about this problem?
Thanks in advance for the help given...
Click to expand...
Click to collapse
SOLVED! The router was the cause of the problem...
Thks anyway

Wifi reception poor and slow connection using Cromni

Hi my first tablet was a xoom.
I've optimized it a lot since I first bought it.
My father has been meaning to get a tablet as well. And so I insisted he buy an older model tablet and save money and still get a great performance since I would "work my magic - all thanks to you guys at xda" to unlock it and install a custom rom for him.
He settled on the TF700.
Ever since we got it we had a bad connection with it. Compared to my xoom its day and night. Sure its a nicer tablet better resolution lighter slimmer. But a tablet with a lowsy wifi connection is rendered pretty useless.
I was pretty confident that installing a custom rom and have it overclocked it would perform better.
With Stock CROMI JB 4.2.1 installed I've noticed improvements... it opens apps quickly and runs smoothly, its only anything involving the internet that doesn't work well..
What can I do? Is it just a lousy wifi chip? is there an app I can get? Would installing the rom onto a microsd help? (Although he would prefer the slot to be free, that's why we opted for the tf700 over say a nexus 10).

If you installed a CROMi rom - that's quite old. You should move to CROMi-X 5.4.
The Wifi connection problem is not related to the rom you're running unless you flashed the WW version although you live in the US....
I've been following the clean roms for more than a year and I can assure you, that is not where the problem is. Everybody having problems with WiFi had them for some other reason.
Approach it from the router side. Reset it, change the channel, try WiFi fixer from the Play Store, turn off WiFi optimization in WiFi settings etc. and try the tablet on a different wifi network.

berndblb said:
If you installed a CROMi rom - that's quite old. You should move to CROMi-X 5.4.
The Wifi connection problem is not related to the rom you're running unless you flashed the WW version although you live in the US....
I've been following the clean roms for more than a year and I can assure you, that is not where the problem is. Everybody having problems with WiFi had them for some other reason.
Approach it from the router side. Reset it, change the channel, try WiFi fixer from the Play Store, turn off WiFi optimization in WiFi settings etc. and try the tablet on a different wifi network.
Click to expand...
Click to collapse
Okay great thank you, I'll try everything you've suggested and post my result.
He did mention getting better connectivity staying at a hotel...

So I tried everything and not seeing any improvement.
I checked and i always had the 5.4version so I didn't have to change that.
I got WiFi fixer and turned off optimization
Router wise I tried to add device to Mac filter tried to remove fire wall and pass word tried different channel and mixed b/g settings etc.
Tried with a different router as well.
Have yet to try static IP.
Its consistent its just the range. When I,m right next to my router I have no problem. But the range is so small with my Xoom I can be outside and still get reception.
Now I,d like to return it but I can,t un-unlock it and return it to manufacturer.
I,d sell it on swappa but who would want a defective tablet.

Paprika88 said:
So I tried everything and not seeing any improvement.
I checked and i always had the 5.4version so I didn't have to change that.
I got WiFi fixer and turned off optimization
Router wise I tried to add device to Mac filter tried to remove fire wall and pass word tried different channel and mixed b/g settings etc.
Tried with a different router as well.
Have yet to try static IP.
Its consistent its just the range. When I,m right next to my router I have no problem. But the range is so small with my Xoom I can be outside and still get reception.
Now I,d like to return it but I can,t un-unlock it and return it to manufacturer.
I,d sell it on swappa but who would want a defective tablet.
Click to expand...
Click to collapse
Mhhh - I seem to remember someone resolving a wifi connect issue by restricting the router to the n-band???
If you moved up to CROMi-X, try a different kernel or reflash the stock rom and check if it is any better on that.
Have you tried the tablet on any other wifi connection than the one at home?
Sent from my K00C using Tapatalk

Paprika88 said:
So I tried everything and not seeing any improvement.
I checked and i always had the 5.4version so I didn't have to change that.
I got WiFi fixer and turned off optimization
Router wise I tried to add device to Mac filter tried to remove fire wall and pass word tried different channel and mixed b/g settings etc.
Tried with a different router as well.
Have yet to try static IP.
Its consistent its just the range. When I,m right next to my router I have no problem. But the range is so small with my Xoom I can be outside and still get reception.
Now I,d like to return it but I can,t un-unlock it and return it to manufacturer.
I,d sell it on swappa but who would want a defective tablet.
Click to expand...
Click to collapse
I am not sure if you have a poor reception or a slow internet speed... If you have a poor reception, you can not do much because of your hardware or a low power of your wifi antenna... If you have a slow internet speed, you could try browser2ram to improve the speed. I found out that the TCP congestion control choice also helps your internet speed with a poor reception. You could try westwood congestion control too see if it helps, good luck...:fingers-crossed:

berndblb said:
Mhhh - I seem to remember someone resolving a wifi connect issue by restricting the router to the n-band???
If you moved up to CROMi-X, try a different kernel or reflash the stock rom and check if it is any better on that.
Have you tried the tablet on any other wifi connection than the one at home?
Sent from my K00C using Tapatalk
Click to expand...
Click to collapse
Well that helped I tried a different kernel and now I have reception about a room farther. Its almost bareable. I'll play around and try the other kernels. I went with the beta one not the extreme version.
Any kernel you might recommend?
At least this gives me hope there are tweaks out there I just have to find them...
I know its not the internet though I have excellent speed tests results. And performance on all my other devices simultaneously
Also does world wide or us SKU make a difference? And how can I tell if my tablet is us vs worldwide?

Paprika88 said:
Well that helped I tried a different kernel and now I have reception about a room farther. Its almost bareable. I'll play around and try the other kernels. I went with the beta one not the extreme version.
Any kernel you might recommend?
At least this gives me hope there are tweaks out there I just have to find them...
I know its not the internet though I have excellent speed tests results. And performance on all my other devices simultaneously
Also does world wide or us SKU make a difference? And how can I tell if my tablet is us vs worldwide?
Click to expand...
Click to collapse
Ha! That could be it! WW (Europe) uses different wifi modules. If you chose the WW option in the installer and you are in the US or CN (or vice versa), that could make the difference.
sbdags has a kernel installer somewhere (in post 2 I think). Flashing that file allows you to change kernels on the fly without reflashing the whole rom. Although you will have to do that if you did choose the wrong region.
I recommend any of _that's kernels. They are the most stable IMO and give you the best performance unless you want to tweak scheduler, govenor, OC etc yourself.

I am noticing a similar issue. I am use @_that 10 with CROMI 5.4 and I cannot get speed test to do more the 8 Mbps download. My Galaxy S5 pointed at the same speed test server downloads at 30 Mbps. I have Verizon FIOS with a 25/25 connection and their WiFi N router.
I tried changing the IP congestion settings but it did not matter.
Just seems slow. I do not have an issue getting reception just slow speeds in comparison.
Any ideas? Is this speed normal?

philow said:
I am noticing a similar issue. I am use @_that 10 with CROMI 5.4 and I cannot get speed test to do more the 8 Mbps download. My Galaxy S5 pointed at the same speed test server downloads at 30 Mbps. I have Verizon FIOS with a 25/25 connection and their WiFi N router.
I tried changing the IP congestion settings but it did not matter.
Just seems slow. I do not have an issue getting reception just slow speeds in comparison.
Any ideas? Is this speed normal?
Click to expand...
Click to collapse
I hope this information helps. I have a 45MBps for my cable modem and my internet speed test is shown on average during the day about 28-30MBps and 32-35MBps at late night on my device....
Edit: Are you using DSL or cable modem? My previous DSL internet provider is very slow too for some reason and maybe my location is too far from the internet provider but I have a better internet speed with cable modem... FYI

LetMeKnow said:
I hope this information helps. I have a 45MBps for my cable modem and my internet speed test is shown on average during the day about 28-30MBps and 32-35MBps at late night on my device....
Click to expand...
Click to collapse
That tells me that my device should be doing better the 8Mbps it is showing in tests Now to figure out why.
All my other devices routinely get 25-30Mbps downloads except my TF700T.

philow said:
That tells me that my device should be doing better the 8Mbps it is showing in tests Now to figure out why.
All my other devices routinely get 25-30Mbps downloads except my TF700T.
Click to expand...
Click to collapse
It will be fun to troubleshoot the internet speed because there are so many variables that could slow down your speed. It could be the time of day and the internet traffic of the server. However, if it is consistently low comparing with your other devices, then the culprit is your setup on your device, good luck...:fingers-crossed:

LetMeKnow said:
It will be fun to troubleshoot the internet speed because there are so many variables that could slow down your speed. It could be the time of day and the internet traffic of the server. However, if it is consistently low comparing with your other devices, then the culprit is your setup on your device, good luck...:fingers-crossed:
Click to expand...
Click to collapse
Set my Router to N only and got 28Mbps Thanks for listening LOL

philow said:
Set my Router to N only and got 28Mbps Thanks for listening LOL
Click to expand...
Click to collapse
It is great that you resolved your issue...:good:

philow said:
Set my Router to N only and got 28Mbps Thanks for listening LOL
Click to expand...
Click to collapse
Told you so

[Q] Lollipop wifi - Does Cyanogen help with this?

So, I picked up my N5 last summer. It's the first android phone I didn't feel like I had to root to get everything I wanted out of it, but after updating to lollipop OTA I've found wifi reception is TERRIBLE, often it would be preferable just to use my cellular data connection; I've read this is a common problem too. Unfortunately, doing this, I find I hit my data cap occasionally, which is a gigantic pain in the butt. I've read that I can downgrade to the version of kitkat that the phone shipped with, but that's kind of like fixing an ingrown toenail by cutting off my foot.
Does anyone know if cyanogen fixes this? If so, that would be preferrable to rolling back version.

Don't know about that WiFi bug. Never experienced it on my phone and neither do I experience it on CM. But if I remember correctly some guys also posted about this issue in the CM thread...

"I've found wifi reception is TERRIBLE"
What does this mean?
Fewer bars on the wifi icon? Wifi connection times out a lot more? Slower speeds?
Fewer bars doesnt mean that the connection is worse.
Timing out/slower speeds might be due to several reasons. TCP/IP tunables, apps using up traffic/opening up ports...