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[Q] wifi problems

im having trouble connecting to wifi. my phone just hangs at obtaining ip address and then eventually fails. ive tried with many different wifi connections not just mine. all the same. Anyone else having this problem?

Yes same problem here.
It seems a general problem like the GPS.
I found out that depending of the router brand it works better (for example, no problem with a linksys).
To go arround the problem you can try this:
- go in flight mode
- activate wifi
- when you have a wifi connection (test with to browser) reactivate the phone
I hope it helps

igm503 said:
im having trouble connecting to wifi. my phone just hangs at obtaining ip address and then eventually fails. ive tried with many different wifi connections not just mine. all the same. Anyone else having this problem?
Click to expand...
Click to collapse
Bring the phone back, and get a replacement. I have had no such problems with my Captivate.
I do notice that the WiFi signal isn't as strong as on my iphone's in the same area of the house though.

still not connecting.. maybe i messed up a flash with odin. i will try that again

the problem started when i flash jm5

problem solved reflashed

Captivate WiFi issue?

My captivate has a problem. It'll connect to WiFi no problem. Unfortunatly, after a while (could be anywhere from long 30 seconds to a few minutes) the WiFi stops sending data. I have to disable/reenable wifi to get it to work again. It still says connected to network, it just won't receive data.
Anyone know of this happening, have a fix, or maybe what I should look for that might be causing this issue?
I disabled recently installed running apps, no help.
I did try a speedfix last night, and it was unsuccessful, and I uninstalled it. Didn't test enough after that to know for sure if it was the issue, but I don't think so.
It was like, I was going through google reader, started a youtube vid, paused it, restarted it, and it wasn't loading. Just wouldn't load. That's when I think the problem started, and I haven't installed anything since then, that i haven't disabled/uninstalled.

Have you tried flashing the stock OS. Maybe this will help. My wifi has been solid so far but i will see if i get a problem like yours. Try reflashing. If it doesn't work post back.
Sent from my SAMSUNG-SGH-I897 using XDA App

I have the exact same issue on enterprise class cisco wifi APs. The only difference is the symptom is immediate, and not after an interval of time.
Sent from my SAMSUNG-SGH-I897 using XDA App

abezapata said:
Have you tried flashing the stock OS. Maybe this will help. My wifi has been solid so far but i will see if i get a problem like yours. Try reflashing. If it doesn't work post back.
Sent from my SAMSUNG-SGH-I897 using XDA App
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Click to collapse
I'm thinking of this, but I don't know...
I have my music on my computer, I have my .apk's in a folder and my market synced with appbrain. Anything else I need to do? Will appbrain reset, and make me go find and reinstall everything?
What about the apps that I paid for, what happens to them?
Would be my first flash, and I'm thinking about flashing one of those I9000 roms, but that would be a last ditch effort. I really hope to avoid this.
jhannaman82 said:
I have the exact same issue on enterprise class cisco wifi APs. The only difference is the symptom is immediate, and not after an interval of time.
Sent from my SAMSUNG-SGH-I897 using XDA App
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Click to collapse
It's an AT&T U-verse router, and only started a few hours ago, as near as I can tell.

I experience the same phenomenon of dropped wifi, and it occurs at any AP, but I have an interesting twist.
One time out of twenty when I start wifi, the 3g icon doesn't go away, but stays up on the status line with my wifi icon. On those rare occasions, my wifi stays solid for days. Unfortunately, it's random and rare.

same issue
My Wifi stops sending data and the 3G still shows. Sometimes restarting the router helps and sometimes nothing helps.

For anyone that might find this later, turns out (after two rom flashes) it was the router. I found this out when connecting my laptop to it. Surprised the captivate didn't admit it lost connection though.

I wish that were the case for me. My Captivate stays connected, but stops receiving at many different APs--Home, Starbucks, airport. I need a solution or a Scotch.
Peter

I had this exact problem, I tried a factory reset and it was still broken. I exchanged my phone and now it works perfectly holding a signal (except for enterprise 802.1x ap's which are known to be broken). (Also if you run dd-wrt check your logs for "deauthenticated due to local deauth", there is a problem with the wpa/wpa2 modules in either android or dd-wrt that they are not compatible with each other).

I actually found this searching for a solution to my own issue with WiFi. I actually fixed it while I was reading this. Unfortunately I have AT&T DSL with 2wire Modem. I went into the setting and setup MAC filtering and assigned it it's own IP. It has worked flawlessly for the past hour. I know this probably will not help when at other locations but at least at home I have a good connection.

VooDooVonz said:
I actually found this searching for a solution to my own issue with WiFi. I actually fixed it while I was reading this. Unfortunately I have AT&T DSL with 2wire Modem. I went into the setting and setup MAC filtering and assigned it it's own IP. It has worked flawlessly for the past hour. I know this probably will not help when at other locations but at least at home I have a good connection.
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Click to collapse
Same router type as mine that lost it originally. Interesting, wonder if there is a connection? Or random coincidence.

I'm having a wifi issue as well, but not to the extent others have.
I connect fine, but it appears as though my data download speed is capped at <2mbps for both wifi and 3g?
My wife's iPhone is getting download speeds of over 10mbps on the same wifi network and >3mbps over 3g.
Is it worth flashing back to stock? or is this a known issue?
I'm running stock JH3 with SRE 1.2.1a with lagfix

I have this same issue and it's really random. Running JH2, sometimes it works on wifi, sometimes it doesn't. Sometimes disabling\re-enabling wifi fixes it, but rebooting the phone always fixes it. Really frustrating...

Maddening wifi problems with Captivate

Ever since I got my Captivate, it has had issues with wifi. It's not my routers, or any configuration in my routers, as it happens with 3 different routers (not to mention that I work in IT, so it's definitely not the routers).
Here's what it does. When you start with a fresh boot, it works perfectly fine. As the day goes on, it gets worse; it starts dropping the connection randomly, and eventually stops working altogether. This wouldn't be so bad of a problem, but the point that it "tries" to start accessing a wifi AP, it drags the phone down in speed, eventually freezing, causing me to ave to reboot the device.
I already tried all options with wifi sleep policy; I've tried 3 different ROMs; I've tried clearing all wifi settings and letting the ROM generate a new .conf file, I've tried different wifi firmwares. Nothing works as it should.
What should I do now? Does anyone have any tips for me? I know it's the OS and not the phone, because the last ROM that worked perfectly was Perception 4.
Thanks for the help.

Easy fix I found.
Open Allshare, it should have come pre-installed.
Connect.
Your Wi-Fi problem should be fixed.
You will have to repeat this step when switching between locations, or when you come back to the troublesome router. I don't know why this works, but it does. It seems to have helped alot of other users in other forums with this problem. Maybe someone should make a sticky of this...seems to be a big problem with 2.2 Foryo.

Similar experiece with both an EVO and Captivate with a Linksys router and DLink wireless AP. Whenever I walked into the house, the other PCs attached to the router would stop working, the phone would not get data although it showed as connected and I had to reboot the router - both wired and wireless clients. The Linksys was a very old firmware and I had bad experieces with flashing a few previous devices. I ditched my Linksys for a DLink 8 port and wireless and have not had the issue with either the EVO, Captivate nor any devices attached to my network.

yamabigdog said:
Easy fix I found.
Open Allshare, it should have come pre-installed.
Connect.
Your Wi-Fi problem should be fixed.
You will have to repeat this step when switching between locations, or when you come back to the troublesome router. I don't know why this works, but it does. It seems to have helped alot of other users in other forums with this problem. Maybe someone should make a sticky of this...seems to be a big problem with 2.2 Foryo.
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Click to collapse
This is news to me. You are correct, I do have Allshare. I'll try it the next time I have the issue.
What if I simply remove Allshare? Will that fix the problem?
bdfx69 said:
Similar experiece with both an EVO and Captivate with a Linksys router and DLink wireless AP. Whenever I walked into the house, the other PCs attached to the router would stop working, the phone would not get data although it showed as connected and I had to reboot the router - both wired and wireless clients. The Linksys was a very old firmware and I had bad experieces with flashing a few previous devices. I ditched my Linksys for a DLink 8 port and wireless and have not had the issue with either the EVO, Captivate nor any devices attached to my network.
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Click to collapse
I have 2 Linksys routers with the latest firmwares, and one D-Link. No matter, it does the same thing with them all.
I should also mentioned that I already tested with changing the router's wireless broadcast channels, signal strengths, firmware updates, the whole 9 yards. The problem is the phone, not the networking equipment.

I used this on 3 Captivates in our house and they are all working great now. Had F&*%%#ed wifi issues before that. They are all ok now. Hope it lasts!
https://market.android.com/details?id=com.brilliapps.wifiandmorefixer&feature=search_result

ajm786 said:
This is news to me. You are correct, I do have Allshare. I'll try it the next time I have the issue.
What if I simply remove Allshare? Will that fix the problem?
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Click to collapse
I'm not sure if that will work. I don't think this is by any means a permanent fix, but a temporary work-around. I think it just kicks the wi-fi into gear again somehow...=-(
Hope it helps someone out though.

I had a friend who was having issues with her phone not even attempting to scan for wireless, seems there is an issue on android phones that the networking cache file or whatever it is gets cluttered and needs to be renamed. (Android recreates it)
The process is rather simple, I walked my friend through the steps over the phone w/o issues.
I had her use oneclick root/unroot to root her phone.
http://forum.xda-developers.com/showthread.php?t=739304
Then Had her go through these steps to rename the file.
http://androidforums.com/samsung-moment/46179-unable-scan-networks.html
The steps are for a samsung moment but still work. Also noted that the steps w/o rooting do not work. After you finish renaming the file you can use the application in the first link to unroot the phone and go back to stock

SlappyMcgee seems to have the best fix

It wont hurt anything and I suggest just renaming the file to .old instead of deleting it. the entire process takes like 8 mins

SlappyMcGee said:
Then Had her go through these steps to rename the file.
http://androidforums.com/samsung-mom...-networks.html
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Click to collapse
Link doesn't work, at least for me.

Update:
The Allshare thing works. The problem is that it's not a feasible workaround, because you have to keep doing that every time you want to restart the wifi after the screen goes to sleep or what not.
I will next try that config file delete. I read up on that last night, but didn't think that was it, because I already did a few ROM installs which didn't seem to clear it up.

Nelimungous said:
I used this on 3 Captivates in our house and they are all working great now. Had F&*%%#ed wifi issues before that. They are all ok now. Hope it lasts!
https://market.android.com/details?id=com.brilliapps.wifiandmorefixer&feature=search_result
Click to expand...
Click to collapse
Little early for me to say this is working for sure. But ill be damned if it didn't, at the very least, temporarily fix it. Instant reconnect. Doesn't hang. Seems like it might be the real deal, for me at least. Ill come complain if it craps out again.
Edit: .... worked for 15 minutes. Aka doesn't work...

What's your kernel?

xdahgary said:
What's your kernel?
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Click to collapse
I tried all different ones. Firebird and Speedmod mainly. When I flash newer versions, I always wait till the battery is 100%, and I clear the Dalvik cache. Nothing ever works.

phlunkie said:
Link doesn't work, at least for me.
Click to expand...
Click to collapse
Sorry about that. I fixed the link in the original post.
http://androidforums.com/samsung-moment/46179-unable-scan-networks.html

i had wifi issues and still do. my girlfried does too with her Aria. The phone really seems to only work on routers who have a DNS set to google. The bar near my house it flys and at home i was getting no wifi so I changed my router DNS to google from comcast and its fine. I agree there is a problem but not one that is going to get fixed by Google

My wifi workaround
I had two captivates which both had problems with my home router. Reseting the router never fixed the issue, but resetting the phone did, at least for a few minutes.
I found that phone has problems using DHCP with routers that assign addresses in the 192.168.1.xxx range. It seems to be a conflict with some other internal IP in the Captivate or something. To get around this problem, I had to change the local address of my router to 192.168.2.1, and change the DHCP range to 192.168.2.xxx The new subnet cleared up the problem immediately for me and it hasn't returned, at least, not on my home router. Unfortunately, this won't work on hotspots or other networks that are stuck in the 192.168.1.xxx range.

timsline said:
I had two captivates which both had problems with my home router. Reseting the router never fixed the issue, but resetting the phone did, at least for a few minutes.
I found that phone has problems using DHCP with routers that assign addresses in the 192.168.1.xxx range. It seems to be a conflict with some other internal IP in the Captivate or something. To get around this problem, I had to change the local address of my router to 192.168.2.1, and change the DHCP range to 192.168.2.xxx The new subnet cleared up the problem immediately for me and it hasn't returned, at least, not on my home router. Unfortunately, this won't work on hotspots or other networks that are stuck in the 192.168.1.xxx range.
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Click to collapse
I ran into this problem on my Router. Netgear wndr3700. For some reason when I turned the wifi on my phone either the router was assigning it the same address as my Tivo or my phone wasnt accepting anything but that address. To resolve I forgot the connection my phone then reflashed the firmware on my router. Then reconfigured the wifi on my phone. After that no more issues.

Well i honestly dont know whats wrong with mine. I've done all the "fixes" in this and other threads but it doesnt work. What is weird is that it connects using All Share and only All Share. However it does connect at other places like my friend's, sister's, granparents and gf's houses. I think I'm gonna go to att and demand a new phone and an upgrade

Just wanted to post an update on this. For the most part, deleting the wifi configuration file in data\wifi seems to have cured the problem. The wifi signal did get stuck on one or two occasions, but I'm bound to believe that the issue was caused elsewhere.

[Q] g2x wifi will not work

ok this is like most other wifi threads for the g2x concerning the wifi... it just simply wont work. i've tried all possible methods i can find to get it to work.. tried all wifi/dns fixer apps i could find and still no connection..tried factory resetting and running the wifi at first set up no go.. tried the whole turn off data turn on wifi turn on wifi calling etc etc also no go ... and last but not least tried several roms/kernels like wg2x, eblood,cm7 also a no go...
wondering if anyone know other methods i can try to resolve this issue? or maybe im doing somethinfg wrong? or its just the phone and is in need of replacing?

When wifi is on does it detect available networks?

phburks said:
When wifi is on does it detect available networks?
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it doesnt connect when i run dynamic ip it gets stuck on trying to connect to my router and when i run it with static it connects but doesnt load any web pages

tried rebooting the router?

crazythunder said:
tried rebooting the router?
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Click to collapse
ive restarted my router from system sum web page and it didnt work but didnt try pushing the red button on my router idk if thats the same

Sounds like your connecting wrong or the password is wrong. Your phone's wifi is working as it is on, sees the network, and trying to connect. Your router is denying it.
Best solution would be to confirm your access. Perhaps remove any security and/or just default the thing. Could be anything.
G2x - 2.3.7 CM7
Transformer - 3.2 Revolver OC/UV

Weird WiFi

I have a US WiFi only P6210. After upgrading to XXKL2 the WiFi is acting funny. It connects to different routers but the icon is no longer blue, it's gray. It won't connect to market and Gmail won't update. Also it no longer connects to my GSII's hotspot. Any ideas?
Edit: I can browse the internet just fine.
Edit again: I just did a factory reset and it solved that issue.

Yes this has happened to me, at three times no less. WiFi connects to network, browser works, but apps that use data don't. I think it might have something to do with the battery being drained completely cause the last two times I had this issue was after I had forgotten to charge it over night. Factory reset fixed it the first two times.
However, the third time it 'fixed' itself immediately after a bought a comic via the DC Comixolgy app. Maybe it somehow forced a reset, or maybe enough time had passed and it fixed it self. ./shrug, just throwing it out there.

motohip said:
I have a US WiFi only P6210. After upgrading to XXKL2 the WiFi is acting funny. It connects to different routers but the icon is no longer blue, it's gray. It won't connect to market and Gmail won't update. Also it no longer connects to my GSII's hotspot. Any ideas?
Edit: I can browse the internet just fine.
Edit again: I just did a factory reset and it solved that issue.
Click to expand...
Click to collapse
Weird. This just happened to me as well. Thing is, a factory reset did nothing to solve my wifi issues
I'm gna try to ODIN and see if that helps
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