Database Develop

Wifi Problems

Well I've had my Captivate for 3 months, and up until now it's been smooth sailing. Two days ago I came home and my power was off, and when it came back on I tried connecting to my router like usual, but now it won't connect. On the "wifi settings" menu it just says "obtaining ip address from..." for a few seconds then it says "disconnected" and goes back into "scanning..." mode. Also, under the "wifi networks" section it shows my network as "Disabled, secured with WPA/WPA2 PSK". (I am using a Linksys WRT54G with WPA2 security f.y.i.)
I've tried "forgetting" the network, I've deleted the whole file that remembers your networks, I've tried connecting via WPS button, I've double checked my password, I've power cycled my router, I've reset my router back to default and re-configured it...still nothing. It connects to the wifi on campus with no problems (in 4 different buildings), so obviously there is something wrong with my router setup.
If anyone has any advice on how to resolve this problem, it would be much appreciated!
**Also, I forgot to mention I am running Cognition v2.2 Beta 6

Bump for hope

Does anything else connect to your router
Sent from my SAMSUNG-SGH-I897 using XDA App

M3MPH1S said:
Well I've had my Captivate for 3 months, and up until now it's been smooth sailing. Two days ago I came home and my power was off, and when it came back on I tried connecting to my router like usual, but now it won't connect. On the "wifi settings" menu it just says "obtaining ip address from..." for a few seconds then it says "disconnected" and goes back into "scanning..." mode. Also, under the "wifi networks" section it shows my network as "Disabled, secured with WPA/WPA2 PSK". (I am using a Linksys WRT54G with WPA2 security f.y.i.)
I've tried "forgetting" the network, I've deleted the whole file that remembers your networks, I've tried connecting via WPS button, I've double checked my password, I've power cycled my router, I've reset my router back to default and re-configured it...still nothing. It connects to the wifi on campus with no problems (in 4 different buildings), so obviously there is something wrong with my router setup.
If anyone has any advice on how to resolve this problem, it would be much appreciated!
**Also, I forgot to mention I am running Cognition v2.2 Beta 6
Click to expand...
Click to collapse
Happened to me a few times. Only way I could get out of this was to restore to a previous backup, or install fresh again. By the way, I experienced this problem only on 2.2. Never happened on 2.1.

fatttire said:
Does anything else connect to your router
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Unfortunately I don't have anything else with wireless to test.

Elaborating on the issue
I've encounter exactly the same problem described here.
Samsung Galaxy S I9000. Froyo (official version). Not rooted.
Now it is the first time it has happened, and still I have not found a solution (restarted the router, restarted the phone and made more tests).
Before the upgrade to Froyo it has never happened. After the upgrade it worked ok for several days untill now.
Several other deviced at home are well connected to the router.

Its just s stupid suggestion maybe... but have you tried to change channels with your router?
Sometimes is just a stupid channel issue....

I found out the answer to this problem. I had to connect using static addressing. It seems at some point, the captivate 2.2 roms get confused for some of us and it starts trying to assign an IP address already used.
In my case, I tried everything... rebooting phone, router, ect.
Laptop connects fine, Wii connects fine...
But, I decided to connect via static addressing... BAM connected perfectly and instantly.
Connecting to other DHCP networks seems to be hit and miss as well.
So, I'd suggest reflashing might be the overall fix. But if you're like me and cannot reflash right away, try static addressing till you can get around to it.

yukinok25 said:
Its just s stupid suggestion maybe... but have you tried to change channels with your router?
Sometimes is just a stupid channel issue....
Click to expand...
Click to collapse
Not stupid at all, but unfortunately yes, I tried a couple different channels and still nothing.

DigitalEagle said:
I found out the answer to this problem. I had to connect using static addressing. It seems at some point, the captivate 2.2 roms get confused for some of us and it starts trying to assign an IP address already used.
In my case, I tried everything... rebooting phone, router, ect.
Laptop connects fine, Wii connects fine...
But, I decided to connect via static addressing... BAM connected perfectly and instantly.
Connecting to other DHCP networks seems to be hit and miss as well.
So, I'd suggest reflashing might be the overall fix. But if you're like me and cannot reflash right away, try static addressing till you can get around to it.
Click to expand...
Click to collapse
Awesome! This sounds like a promising solution, thanks. Yeah I need to reflash soon anyway seeing as how Cognition is up to 2.4.x already...
Probably won't be tonight, but I will do this soon and let you know my results.

Alright, I have typed just about every keyword into google relating to setting up my router/phone to use a static IP and for some amazing reason there are ZERO results that have any information whatsoever about setting up a static ip on a phone. This is really frustrating, so if anyone would be kind enough to explain how to do this or link me somewhere that does, that would be awesome

go to your wi-fi settings and click the menu button.
it should pop with a "scan" and "advance"
click on advance and scroll down to "use static ip address"
then i guess you have to put in your network details, not sure on the details there cause i have done it but experiencing same problem with my galaxy s
power went out and now can't connect to my network
Edit : Possible fix
I just managed to connect to my network.
I put the device in flight mode and restarted my modem at the same time
put it out flight mode and pluged in the modem again and now works.
Hopefully that works for you to guys.

Yea, works perfectly. I have my laptop connected to it right now. I usually have to reset the phone to get wifi again.
edit: I set it to static ip, but then i got the same problem. Except now google search engine works No webpage opens, youtube app didnt work either.. only the search engine worked.

Well my phone must be in a good mood today because it just decided to start working again all on its own! I don't know what caused it...I have actually had both my phone and computer constantly on since this started happening. So for now I'm keeping my fingers crossed and hoping it doesn't mess up again.

This is probably just for me, but this isn't a viable solution.
The ONLY router I seem to have this issue with is the one that Verizon gives all it's FiOs customers. It's the Actiontec M1424WR Router/Modem. I know my WEP key is correct because it works just fine on all the laptops and other phones (a Palm Pre and another Captivate on 2.1). It tries to obtain an IP address for about 5 minutes and then just sits and says disabled. Does anyone know if there's a way to dump the DNS cache or whatever like you can on Windows?

Add me to the list of ones having this problem...guess I'll try to reflash everything in a bit to see if that fixes the problem.

Just an update I backed up everything using Tibu and then just restored it and my WiFi problem went away.

Mine is stock and just started having this problem....will connect to other wireless routers except mine, really pissing me off!
I've tried many times having the the phone "forget" me, then put in my password(which is correct)...same thing over and over.

Same problem here
I have a galaxy s and the recent update to froyo brought me the same problem already described here.
And the "funny" thing is that my router doesn't have an Static IP option, it's a simpler router from the cable provider.
So i'm trying also to find a solution to this. Two days ago i changed the wifi channel and it worked. But today i have again the same problem and changing the channel don't work anymore.
Each time i find a possible solution, it only works one time.
This is really annoying me. This must be a froyo bug, 2.1 never gave me this problem

pedroc2009 said:
I have a galaxy s and the recent update to froyo brought me the same problem already described here.
And the "funny" thing is that my router doesn't have an Static IP option, it's a simpler router from the cable provider.
So i'm trying also to find a solution to this. Two days ago i changed the wifi channel and it worked. But today i have again the same problem and changing the channel don't work anymore.
Each time i find a possible solution, it only works one time.
This is really annoying me. This must be a froyo bug, 2.1 never gave me this problem
Click to expand...
Click to collapse
It must be a froyo beta bug. Remember we don't have a final version of this firmware for the Galaxy S family.
Sent from my Captivate

[Q] WiFi problem: stuck on "getting IP address"

I have had my Tab for 2 weeks now.
At home I had no problem to connect to my WiFi network for 1 week: then suddenly the Tab would not connect and would remain stuck on “getting IP address…”.
I changed from WPA to WEP to WPA2 PSK with no luck
But if I go to a static IP, then I have no problem to connect.
On my office “public” WiFi network, exactly the same problem: it worked for a week and then bingo stuck on “getting IP address…”. Again going to static IP solved the connection problem.
My question is: how do you delete a network from the list? It seems to me that the Tab keeps an IP address in memory and if ever that address is taken by another device, it gets stuck!
Any advice would be appreciated.

I had this exact same issue on the same day I bought my Sprint Galaxy Tab (11/14). I did a hard reset that afternoon, and I haven't experienced the issue since. I'd already had all of my apps downloaded, and settings tweaked, so hard resetting was kind of annoying. I hope this doesn't come up again.

Yep sounds familiar, my Thomson Speedtouch 780i runs on a old firmware which gives me same issue with the Tab, had to run with no security. If you decide to run with no security turn off broadcasting..or update firmware/router..

My router is quite recent and has the latest firmware.
All my toys (iPad, Dell Streak, HD2 together with 3 PCs) connect without any problem.
The Tab had no problem either for a week.
Then for unknown reason no way to connect unless using a static IP.
And as I have not found a way to delete the network in memory (short of doing a hard reset)I am stuck.
And now same problem arises with office netxork:-(

Yeah just do a factory reset in privacy settings i think

susu42 said:
My router is quite recent and has the latest firmware.
All my toys (iPad, Dell Streak, HD2 together with 3 PCs) connect without any problem.
The Tab had no problem either for a week.
Then for unknown reason no way to connect unless using a static IP.
And as I have not found a way to delete the network in memory (short of doing a hard reset)I am stuck.
And now same problem arises with office netxork:-(
Click to expand...
Click to collapse
My Tab is doing the same thing now. I can't do a hard reset....is there another solution?

Ugh, I have the same issue! Had it for 2 days and all of the sudden it's stuck on Getting IP address from... Resetting to factory defaults was depressing. I wish there was another way!

It also happened to me when I was on vacation at my relatives home. The tab would work for a day or two and then be stuck at that message. I had no issues with doing a factory reset as it was still new. But then I started using the static IP trick and that worked. Now I'm back at home and I don't have this issue at all. Been using it for a week with my wifi and all is well.
Nothing was actually working: restarting the router, forgetting the network, creating the network manually, changing the authentication method, etc.
I'm sure its was an issue with the router at my relatives home, but still why was my Nexus one and Laptop connecting with no problem???
For those who are having the problem, use a static IP for the time being, you don't have to reset.
-Gus

I ended up switching to Channel 1 on the router at home, and haven't had any problems since. Chose Channel 1 after running WiFi Analyzer.

having this same problem. I've messed with WEP vis WPA and tried static IP. Using a verizon fios router. any help?

Bah, it happened again! Now I really dont want to reset

Same issue here ...
I can get WIFI at Starbucks but not at home ( Open-WRT on linksys )
I wonder if it depends on SIM card being inserted?

Mine is a Verizon FioS router as well, at work. Can get on fine at home or anywhere else. My iPad had a problem here forgetting the network but I could at least reconnect. This is doing exactly like you guys.
I wouldn't even care that much except when I'm inside the office I can only pull in Edge data. Ugh.

I had to change wireless settings on my Linksys - most changes were to disable some fanny things like "afterburner" - and setup wap2 for security to have a stable wifi.

I've had the same problem with my TMobile Galaxy Tab. All I do is to turn off Wifi in the Settings app, then turn it on again. I am usually able to snarf an IP address straight away after that.
It also helps to just turn the device on and then off again. it boots so fast that it isn't too annoying.

I had similar problem at home. My DHCP server had wrong time set. After setting the time on DHCP server correctly everything is back to normal.

i hav a tab on tmobile love it not sure if i had the same issuse as u guys tho the issuse i had was it would work without any problems im talkin about wifi then the next day the wifi doesnt want to lock onto the wifi it would search then drop to start serchin again , now wat i learned is sum apps require wifi to work because high data at the same time it changes sumthing in ur wifi settings after using the app the first time which would require u to master reset the device to resolve the issue the program that was doin it for me was frostwire

same here
my version of the same problem appeared when i changed the static IP of my home router (AVM Fritz!Box 7170). before that i always got a dynamic IP through DHCP on my galaxy tab.
After changing the router IP i only could connect with a static IP.
if i use a different WIFI network instead, DHCP is working as expected.
in my opinion the problem is with the firmware storing the network settings and with no possibility of deleting it completely. a hard reset cannot be the solution...
does anybody of you know if this problem occurs on other froyo-based devices also? is there a way of deleting network settings in a working way?

Had the same problem, EU TAB white Stock 2.2 rooted spot connecting to my main Wifi but connects to 3 or 4 other dhcp APs.
Have a htc Desire whit stock 2.2 + rooted and never had that problem.
In the end i hardreset Tab and no problems 1week and counting.
EDIT
FUuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
Happen again... im not going to hardreset again, im looking for a more permanent solution

Had the same problem. I have the Verizon FIOS router. The solution is actually easy. Just drain the battery of the Tab. Charge it to full and turn the Tab on. I think the Tab really "forgets" the old network after this kind of restart. No need to reset your Tab to the factory settings.

[Q] I'm getting WIFI connect..disconnect.continously (advanced set to NEVER off)

I'm getting WIFI connect..disconnect.continously (advanced settings set to NEVER off)
I just upgraded to a Virgin Media Superhub (WIFI and Cable modem built in)
I set the WIFI to "WPA PSK (auto)"
is this causing the problem
I am trying "WPAPSK2 AES" today to see if it fixes it?
Me and my house mate have a galaxy S and both phones are doing it.
is it my WIFI router or is it the Galaxy S's at fault here
apologies if this has been covered, i did a search but wasn't sure what to search for about this.
Cheers

@anyone
I tried WIFI tether and WIFI fixer apps but no joy
I had a WIFI connection before with my Netgear router in WEP. The super hub is a netgear router, i cant understand whats causing the problems.
its just connecting and disconnecting .
when ui set it up from scratch sometimes it works until i go out of range, then goes the connect disconnect route...
Also I unplugged the modem and turned SSID on (it found it and stayed locked) and then SSID off (it appeared to keep connection) ...? is this a clue as to why it keeps connect disconnect?
Any help welcome cheers

i solved this but I dont know how
i set up both to
WIFI to "WPA PSK (auto)
phone to wpa psk2
and then revealed the ssid in the modem. left it for a bit, then hid my SSID
it's worked properly for a few days now.
maybe it needed to do something to lock on?
....now if i could get my MMS working another story

I have the same problem... It's driving me crazy

all i know is this
get rid of juice defender if it's on
Turning The Virgin super hub on and off solves the problem temporarily.. faster than reboot the phone.
if your phone isn't rooted, don't enter the WIFI settings twice it can corrupt the wifi complexly needing a master reset!
also i set the Virgin hub to
WPA auto Broadcast SSID
also on Virgin Hub
settings
advanced settings
content filtering services
untick firewall and ip flood
i think broadcast SSID on your WIFI unit fixes it

galaxy44 said:
all i know is this
get rid of juice defender if it's on
Turning The Virgin super hub on and off solves the problem temporarily.. faster than reboot the phone.
if your phone isn't rooted, don't enter the WIFI settings twice it can corrupt the wifi complexly needing a master reset!
also i set the Virgin hub to
WPA auto Broadcast SSID
also on Virgin Hub
settings
advanced settings
content filtering services
untick firewall and ip flood
i think broadcast SSID on your WIFI unit fixes it
Click to expand...
Click to collapse
The problem started when I updated the new official version on my galaksy S
.....

Transmit the modem SSID

galaxy44 said:
Transmit the modem SSID
Click to expand...
Click to collapse
it's transmitting....

Reflash?
Sent from my GT-I9000 using XDA App

are your setting for the phone and WIFI the same as the ones i posted above on the other posts?

I flashed CM7 and it works perfectly
http://download.cyanogenmod.com/?type=stable&device=galaxysmtd
give it a try...(you need to be rooted)

do you know your firmware version? i have the same problem. ive tested and the wifi sleep policy doesnt work at all!
my wifi reconnects every 59 seconds with sleep set to never. its the same with sleep set to never when plugged in. sleep when screen turns off doesnt work and is exactly the same, reconnects every 59 seconds and doesnt sleep at all. not as far as ive seen (watched for around a quarter of an hour before getting very bored). I dont know if this is anything to do with it but if you watch the WIFI scanning the Connection resets after every 10th scan. Im using a Belkin router but as said ive tried on several different WiFI connections and the drop out is always the same.
im using jvt firmware and semaphore kernel.
my phone was froyo before and wireless was fine before flashing.
ive spent a week on google with this. there are hundreds of threads and even vids on youtube. as yet though no fix.
ive changed router settings at home. with no improvement. the reconnection happens whenever im on wifi and i cant see mcdonalds letting me rummage through their router.
As far as i can figure the problem started in the jvs firmware. I havent tried jvs but there are a couple of google results saying that since updating to jvs wireless reconnects constantly.
same as above......
HELP!!!!!!!
Its driving me mad!
FIXED at home. Changed Belkin Routers Lease Time from "Forever" to "1 Hour". Guess outside connections will depend on what the Routers Lease times are set up as.
However the "Stop WiFi when screen turns off" still doesnt turn off Wifi at all (as far as I can see, as now tested for over an hour).

thedeester1 said:
FIXED at home. Changed Belkin Routers Lease Time from "Forever" to "1 Hour". Guess outside connections will depend on what the Routers Lease times are set up as.
Click to expand...
Click to collapse
i have such a ****ty router and cant even set up the lease time
well im going back to jvr..
i believe they changed some wifi drivers in jvs and jvt and thats why some phones get this bug..

[Q] issue with darkrom 3.4

Hello
since installing 3.4 I have had issues with this rom however none so serious I jumped ship however I have problems with conecting to my home wifi which is causing pain...
I have set up wifi on my note as dhcp and my netgear router is also set to give ip address via dhcp however the note will only connect sometimes otherwise the message 'obtaing ip address' is shown then the connection drops to remembered and then Im back on 3G. I have tried various fixes including re-flashing the rom providing a static ip address. I have this issue with any dhcp network the note just will not connect all the time...
ingott

ingott77 said:
Hello
since installing 3.4 I have had issues with this rom however none so serious I jumped ship however I have problems with conecting to my home wifi which is causing pain...
I have set up wifi on my note as dhcp and my netgear router is also set to give ip address via dhcp however the note will only connect sometimes otherwise the message 'obtaing ip address' is shown then the connection drops to remembered and then Im back on 3G. I have tried various fixes including re-flashing the rom providing a static ip address. I have this issue with any dhcp network the note just will not connect all the time...
ingott
Click to expand...
Click to collapse
It happen even on stock to me mate.What I do is turn off wifi,go to browser and navigate to any site(yeah with wifi turned off still and data network off),when it gives you error turn on wifi and refresh the page.
I know its irritating but I have no solution and it works for me

still trying to find a solution to this. setting wifi sleep policy to Never seems to help I also deleted the dhcp_list file which forces the note to reconnect from scratch each time it connects to a known network rather than selecting it from the list. still not a full fix. seems to be a samsung thing rather than rom based. do the modem downloads available control the wifi functions or are they just for radio 3g etc as I will try a different modem to see if that helps.....

Bump
Sent from my GT-N7000 using XDA

Grey WiFi icon

Got me a new router from my ISP, of course there were issues instantly! Having problems connecting to wifi. Called my ISP and they said there is a bug somewhere in the router or in android itself. The router is a ZYXEL P-2812HNU-F1. They said I needed to get a static ip adress to each device. I got my Galaxy S2 up and running in no time, however, my HP Touchpad is not being so friendly. It says I'm connected but I get the grey wifi icon. Tried to disconnect and reconnect but no result. Also tried to forget the wifi and so on but no result. Also changed to b/g since it handles /n aswell. I've changed the router channel. In addition, my TP have begun to reboot randomly often in very fast cycles. I've flashed the Supreme mods a few days ago and everything worked flawlessly with my old router. Could the Supreme mod interfere with this maybe? Anyone please, this is so frustrating!
Edit: I'm on CM9 14 July build

Creutz said:
Got me a new router from my ISP, of course there were issues instantly! Having problems connecting to wifi. Called my ISP and they said there is a bug somewhere in the router or in android itself. The router is a ZYXEL P-2812HNU-F1. They said I needed to get a static ip adress to each device. I got my Galaxy S2 up and running in no time, however, my HP Touchpad is not being so friendly. It says I'm connected but I get the grey wifi icon. Tried to disconnect and reconnect but no result. Also tried to forget the wifi and so on but no result. Also changed to b/g since it handles /n aswell. I've changed the router channel. In addition, my TP have begun to reboot randomly often in very fast cycles. I've flashed the Supreme mods a few days ago and everything worked flawlessly with my old router. Could the Supreme mod interfere with this maybe? Anyone please, this is so frustrating!
Edit: I'm on CM9 14 July build
Click to expand...
Click to collapse
The wifi icon color is blue when you're connected to the Google servers. I remember reading something similar to your situation, I'll post a link if I find it. Meanwhile, you've probably tried this, but in case you haven't, try turning the router off for a while, then turn it back on again. You might want to go to a later build, they're quite stable. I'm one of the lucky ones, only had any wifi issues once, and turning the router off then back on solved it for me.
Good luck.
Edit : Try deleting the Supreme mods, they might be the problem.

As you said, I've tried to switch off the router and put it back on but I tried it once again but no result. I've also removed the supreme mods but there is no difference. I still get the grey wifi icon. Maybe should try a newer build, so tiredsome though but maybe the only solution. Will call my ISP for a factory reset on the system aswell.
Edit: Managed to come up with a solution. My ISP wasn't of any help so I had to do something on my own. So, I changed the security to wpa instead of wpa2 and noticed that my tablet got connection! The thing is, I want to use the /n standard and wpa does not support that. So (again), I had to enable a second wireless network and luckily my router supports four. One network with wpa2 (laptop) and one with wpa (tablet). Not a pretty solution but it works!

Creutz said:
Got me a new router from my ISP, of course there were issues instantly! Having problems connecting to wifi. Called my ISP and they said there is a bug somewhere in the router or in android itself. The router is a ZYXEL P-2812HNU-F1. They said I needed to get a static ip adress to each device. I got my Galaxy S2 up and running in no time, however, my HP Touchpad is not being so friendly. It says I'm connected but I get the grey wifi icon. Tried to disconnect and reconnect but no result. Also tried to forget the wifi and so on but no result. Also changed to b/g since it handles /n aswell. I've changed the router channel. In addition, my TP have begun to reboot randomly often in very fast cycles. I've flashed the Supreme mods a few days ago and everything worked flawlessly with my old router. Could the Supreme mod interfere with this maybe? Anyone please, this is so frustrating!
Edit: I'm on CM9 14 July build
Click to expand...
Click to collapse
I did read somewhere that giving the TouchPad a static IP address helped with a lot of WiFi problems, maybe its something you could try. I personally haven't had any WiFi problems so I have never needed to test it.

BIGSimon said:
I did read somewhere that giving the TouchPad a static IP address helped with a lot of WiFi problems, maybe its something you could try. I personally haven't had any WiFi problems so I have never needed to test it.
Click to expand...
Click to collapse
Made a little update on my previous post. The solution was that I needed to change the security on my network (wpa2 to wpa). But as you mentioned, I needed to set it to a static IP adress aswell. Up and running now, as I type at least

try running an atheros update. i also prefer wifi analyzer for connecting to wireless networks rather than the android wireless settings. It shows you detail and information that android settings do not. Lets you configure channel options for B/G/N and A. plus more. its avail in google play.