Database Users

Wifi obtaining ip address....

My Wifi connected to my home router perfectly until I flashed the custom rom.
Now it wont work. the phone recognizes my network, then tries to connect but it pauses at the obtaining ip address bit and doesn't connect?
I tried to restart the router. It doesn't work.
I tried to reflash the rom or offical rom (KE7). It doesn't work.
I also tried to delete the file /data/misc/dhcp/dhcp_list, but there are no "dhcp_list" file inside 'dhcp'
Do anyone have another way to solve this problem?
Thanks

Could be a problem with the router, are other devices able to acquire IP addresses from it correctly?
Perhaps you should assign a static IP to see if that makes a difference.

I am on KE7 stock rom with root and had this problem too. It just started yesterday and got stuck at obtaining ip adress. So I switched WIFI off and flight mode on and after some seconds wifi on and flight mode off and it connected. I also noticed that now sometimes when it is in standby it disconnects from the wifi network (but wifi is still ON) and when I wake it up it connects to my network.

Me too, same problem.
If wifi is ruled on "sleep when screen turn off", it don't wake when screen turn on.
It stay on " searching for IP adress...".
For the moment, I'm forced to leave wifi on "never" and I use Juice defender for disabling wifi on screen off.
I really think it's a common pb with SGS 2. May be it will be fixed with 2.3.4.

Same problem. I 'fix' it by turning off wifi then turning it back on and it gets an IP address immediately.

same problem here with a dlink dir-615 router. from time to time the phone can't get an ip, and it only works if i reboot the router. didn't try with another router yet ( well, i connected to a few more but not frequent so i can see if there are problems), but i ordered a new one anyways since the dlink also crushes my battery too.
try posting the brand/model of the router you have problems with, maybe there's some specific ones that are troublesome.
d-link dir-615 here / ke7 stock - rooted

I also have a dlink router. But I get the same problem with a Belkin.
With my first SGS, no problem. I really think it's a specific issue on SGS2.
I'd read in some place that 2.3.4 will fix some wifi problem known for the moment on 2.3.3...
Let's see...

I'm seeing this with both my home router (Netgear WNDR3700) and my office router. Disabling & re-enabling WiFi on the SGS2 solves it -- fortunately, it's easily accessible on the notifications panel.

Same thing with Dlink dir 815.
Sent from my GT-I9100 using XDA Premium App

Same thing here with Draytek 2820 router, all other devices (PC's Phones, PDA's etc) have no problem. SGS2 however needs WiFi turning off when waking from sleep to get it to obtain an IP address again. However my HD2 also running Gingerbread 2.3.3 works faultlessly.

KF2 seems, for me and some others, fix the problem...

hi
lucky me, i thought im the only 1 having problem with wifi
my problem, same as the others
the wifi try to connect (obtaining IP) and then disconnected
it will scan again, same thing will happened
try with all type of protocols, wifi b,g,n wep, wpa, no passwd
results still same
try to connect wifi at my office, results also the same
im on KF1 using dlink 615
hopefully someone can help us
tq

Just got my Galaxy S2 today. Cannot connect to wifi network on G or mixed mode, with or without security - just tries to obtain an IP address. Ridiculous.
Any help ? Quick search on Google doesn't bring up too much. There does seem to be an app called "FXR Wifi" but I don't expect to use that on a brand new phone.
Update: Upgraded my router's firmware (WRT54GS) and it works !

I have the same problem with my SGS 2. I can't connect to an AP - NETGEAR DG834G.
I found a partial solution to use my phone with my AP until I solve the problem. In the Wi-Fi settings menu enter Advanced mod and set the IP address, Gateway, Netmask, DNS1 manualy (by touching <Use static IP>). If you don't know what IPs you have to set for IP address, Gateway, etc. just connect with you laptop or desktop and use the settings from your computer. Just make sure you type a different IP address in your mobile (not the one from your computer - for example in you computer you'll find something like this: 192.168.0.3, you'll have to type in your mobile something like this: 192.168.0.10). The rest of the settings have to be identical.
Good luck!

To solve this "obtaining ip address problem". Set the following manually in the advanced configuration and save it.
1. ip address(your choice).
2. subnet mask(255.255.255.0).
3. default gateway(192.168.1.1).
4. dns servers(8.8.8.8,8.8.4.4)
Note: The above given values are the most commonly used, you change it if you want so.
After entering these values manually(and correctly), it will connect to the networ in 1 or 2 seconds.

like mine SG s2, wifi connects works perfectly at home and friends place,
but stucks at obtaining ipaddress for wifi, at the mall and college, ( where it needs first login page for authentication) ( or to agree user terms and regulation),
any idea, how to fix this issue.
Thanks

mine also does this where it doesn't get an ip. Reboot your router or just disable and re-enable the access point feature on the router and it should work without having to reboot it
Sent from my GT-I9100 using Tapatalk

but at university?college or mall, we dont have access to router.
any other idea to fix this
Thanks

Hey guys! Did you find a fix for this problem? I have the same thing happening right now. I tried at different places, home and country house with Zyxel P660HN and Cisco E4200 respectively. Stuck at obtaining IP address...

XSCounter said:
Hey guys! Did you find a fix for this problem? I have the same thing happening right now. I tried at different places, home and country house with Zyxel P660HN and Cisco E4200 respectively. Stuck at obtaining IP address...
Click to expand...
Click to collapse
Search xda with 'wifi rare' and 's2 wifi not working'.. U can find few threads dealing with wifi problem..
Sent from my GT-I9100 using XDA Premium App

can't connect to my home wifi

i got my new omnia 7 today and i can't connect to my home wifi router. i tried to disable security, tried wep.....but it allways says "couldn't reach wifi network" or "password incorect". i tried to reset my router and my omnia 7, but nothing helped.
thanks in advance!

today, i connected just fine on one open ap, and one wep protected ap, but i still can't connect to my home wi fi ap. really confusing. my laptop and old htc prophet connects just fine, but my new omnia 7 won't. any advice?
thanks!

ok, so since no one tried to help me here, i tried every single thing on my router and it seems that the phone can't handle b+g standards, so i switched to g allone and now i'm able to connect. i hope this will help someone else too.

Nice tip
Hey man,i guess no one had the problem or didnt know what to do,anyway i had a differrent problem,when i was close to my router (no more than 8 meters) my phone connected normaly to the wifi,but once i was in my room which is further away from the router the phone wouldnt connect although it showed the wifi router signal had two bars,i tried your method in switching to g only and it worked ,now i connect to my wifi with no problem,thx for the tip ,hope they fix the issue in mango,cheers.

phobius87 said:
ok, so since no one tried to help me here, i tried every single thing on my router and it seems that the phone can't handle b+g standards, so i switched to g allone and now i'm able to connect. i hope this will help someone else too.
Click to expand...
Click to collapse
I have the same problem with my wifi router.
My phone is HTC 7 Throphy.
I have to reset my router every time my phone needs to connect to it.
My router is configured for DHCP.
I noticed that if there is a wireless device connected to my wifi network,
my phone gives that error and cannot connect.
If I try to connect to a wifi network which is secured with a password,
I always get 'Incorrect password' message.
I try reseting my phone with no effect.
I'm still looking for a solution.

Same prob here....

princegoro said:
Hey man,i guess no one had the problem or didnt know what to do,anyway i had a differrent problem,when i was close to my router (no more than 8 meters) my phone connected normaly to the wifi,but once i was in my room which is further away from the router the phone wouldnt connect although it showed the wifi router signal had two bars,i tried your method in switching to g only and it worked ,now i connect to my wifi with no problem,thx for the tip ,hope they fix the issue in mango,cheers.
Click to expand...
Click to collapse
no problem man.
it seems that there are many troubles with wifi on windows phone 7 and many users are complaining. i hope too that mango will fix most of those issues. mango will bring possibility to connect to hidden network.
for other users posting on this topic, i suggest that they try switching to g standard only, becose i too had this incorect password message allways poping up before the switching. it can be done in the router web configuration interface. u get in usualiy by typing 192.168.1.1 in your adress bar.

phobius87 said:
no problem man.
it seems that there are many troubles with wifi on windows phone 7 and many users are complaining. i hope too that mango will fix most of those issues. mango will bring possibility to connect to hidden network.
for other users posting on this topic, i suggest that they try switching to g standard only, becose i too had this incorect password message allways poping up before the switching. it can be done in the router web configuration interface. u get in usualiy by typing 192.168.1.1 in your adress bar.
Click to expand...
Click to collapse
My router is on g standart only but I still get that error.

well, if you know what you'r doing, you could try different configurations in your router. play with the settings and see if it will work, but again, only if you'r sure you won't screw up anything.

I found a fix.
In my router settings I changed the Chanel from 6 to 10.
I think the problem is that I have too many wireless devices in a small room.

you lucky bastards with wifi connectivity.. i have a pppoe account on my wifi and there is no way for me to connect to it whatsoever.

if you have access to your router settings, you can change briged to routed connection.

for some reason, i can't access router! i tried contacting my ISP, did not want to die waiting for an answer.
but i remember trying to do that before, and not knowing how.
Could you post a link with the instructions, zemljak?

you have a pm.

phobius87 said:
you have a pm.
Click to expand...
Click to collapse
i dont know if you are receiving my pm's, i dont see it them in sent.

I have this intermittent connection on a netgear wireless router too, its set to use dhcp, and only fix is a reboot of the router.
I think the phone is storing an ip (dhcp assigned) which when you reconnect to your wifi may have been re-assigned (ip lease) to a.n.other device in the meantime.
So, lets say on Monday I obtained 192.168.0.2
didnt access the wifi for a day or so
lease expires (router)
a.n.other device connects, e.g. iPad, obtained 192.168.0.2 via dhcp
then you try and use your wifi on your phone and it doesnt connect.....
so I think it might be storing the ip address, rather than checking for a new one each time it connects, or something similar.

Over a half year I had the same problem. But now I fixed it, by simply change the wlan-key, because in my old key I had letters like ä, ö, ü. That didn´t work. May be this works for you.

FIX!
tchimev said:
I found a fix.
In my router settings I changed the Chanel from 6 to 10.
I think the problem is that I have too many wireless devices in a small room.
Click to expand...
Click to collapse
I started having the same problem with the phone prompting me that i had the incorrect password. I changed the channel in my router and now my Surround is connecting without hessitation! Thanks!

Hi,
I have Nokia Lumia 800 with Windows Phone 7.5 and also have problems with my home wifi connection. Firstly I had an old pentagram router and couldn't to connect with it, I tried WPA, WPA 2, WEP, WPA 2 mixed or even no security, always had the same problem, shows "network don't respond".
The phone itself connects to other networks, but not my home network.
I thought that it was problem with my router (but every other device had no problems with conenction, ipad, galaxy s, laptops or even TV), so I took another router (techniklab) and I have the same problem.
On both routers in "active clients" I saw the phone when it was trying to connect, logs looks like:
Code:
Aug 20 22:13:31 wlan0: WPA2-AES PSK authentication in progress...
Aug 20 22:13:31 wlan0: A wireless client is associated - 50:2D:1D:E2:8A:87
Aug 20 22:13:31 wlan0: Open and authenticated
Aug 20 22:13:53 wlan0: A wireless client is disassociated - 50:2D:1D:E2:8A:87
Windows on my phone is up to date, router firmware also.
I can add that from couple of days I have Windows 8 (on PC) and it also cannot connect to my router, could it be some problems in new microsoft windows??
Any suggestions?

Wi-Fi connection intermittent failure - requires router reboot!

I've been having this issue with both my Nexus' - my 10 and my 7.
I'll look up and find my connection bars greyed out or none showing and my connection dead. All the other devices on the network will be functioning just fine, just the Nexus will have no connection (I have two laptops - one Mac one PC - several cell phones and sometimes a printer)
Looking at the settings the network will show that it's either trying to connect over and over or just "saved".
Attempts to log back in will be unsuccessful with the device seeming like it's failing to get an IP address our something.
The ONLY way I can get reconnected is to reboot the router itself. Quite a drag...
Google doesn't seem to turn up anything, and forum searches likewise have not been successful
(One problem is there's a lot of 'noise' in results from searching trends like "Wi-Fi", "connection", etc).
Anyone have a clue? It's annoying, especially when it happens somewhere I don't have access to the router (coffee shop etc).
Mostly tho, it seems to happen at home.
I'm running a Belkin N150 router with out-of-the-box settings.
Any help would be greatly appreciated!
Note: the problems don't always show up on both Nexus' simultaneously. Sometimes one will have a connection while the other does not, and sometimes they'll both be disconnected.
Every other device's connection will be fine tho.
Sent from my Nexus 10 using Tapatalk

i think ur facing ip conflict, new routers should not have such issue but ur nexus devices seams to have such issue.
try this, manually setup ips in ur nexus device (give ips as far from ur normal ips e.g nomal ip 192.168.1.5-6-7 u try 50-51-52
and also give google dns in ur manual settings
8.8.8.8
8.8.4.4
grayed out signals means ur device cant resolve dns (usually cant connect to google)
replay with updates.
P.S: if you have connected to ur router via push button process then also try connecting to it via entering wifi password key.

xateeq said:
i think ur facing ip conflict, new routers should not have such issue but ur nexus devices seams to have such issue.
try this, manually setup ips in ur nexus device (give ips as far from ur normal ips e.g nomal ip 192.168.1.5-6-7 u try 50-51-52
and also give google dns in ur manual settings
8.8.8.8
8.8.4.4
grayed out signals means ur device cant resolve dns (usually cant connect to google)
replay with updates.
P.S: if you have connected to ur router via push button process then also try connecting to it via entering wifi password key.
Click to expand...
Click to collapse
Thanks, gonna try this. Lately been getting grey bars but still have internet so perhaps it's related to a dns problem.
Sent from my Nexus 7 using Tapatalk 2

Download free App from Store - "Wifi Analyzer" to scan your 2.4 Ghz band to see if interference from other nearby routers on the same channel might be causing interference. Switch to a less congested channel might solve the problem, Fios routers tend to default to Auto, usually on 1, 6 or 11 - your signals might be "fighting" with several others routers trying to "hand-shake" between the devices - do it while rebooting the router.
Take a look under Settings - Wi-Fi and then "Advanced" to see what is your N7's setting on "Keep Wi-Fi on during sleep" - if it switched into energy mode/sleep, it might stay there & wake up to resume. This is known to happen to Android devices but iOS ones too.

https://code.google.com/p/android/issues/detail?id=40065
This is a known problem. Read the above for more information.
My solution https://code.google.com/p/android/issues/detail?id=40065#c737
I have a N7 32G and an ASUS RT-N66U and had been having disconnection of my Wifi during use. Sometimes, turning on and off Wifi works but at spots in my house that's a bit further from the router, it will not connect. A few weeks back, rebooting my router helped for a few days and same problem occurred again. Then I tried static IP, and that helped for a few days. The latest test I did was to increase the "Network Key Rotation Interval" on the N66U from the default of 3600 to 7200. Crossing my fingers and hoping that this will finally solve my disconnection problem. My Wifi is set to 2.4GHz band, Wpa2-personal AES.
My firmware https://code.google.com/p/android/issues/detail?id=40065#c743
is firmware is 3.0.0.4.260 which is the latest.
Hope this will be useful for you. :thumbup:
Sent from my Nexus 7 using Tapatalk HD

[Q] New Nexus 7 can't connect to wifi (couldn't sign in) help..

I just bought a nexus 7, came home and spent 3 hours trying to connect this to wifi and it doesn't work... meanwhile i have 9 devices connected wireless that never had problems... -_-
when i first start my NEW nexus 7 and get to select wifi page.. i select my wifi (which shows 3 bars) i enter my correct password and it just loops from "connecting.." to "obtaining ip address" over and over after hour of that i got fed up and tried connecting manually .. i tried using ip/dns from ipconfig in cmd didn't work.. i went to my iphone and copied the wifi adress settings to my nexus 7 and it said connected
but when i went to next i logged into my gmail account and i get this
"Couldn't sign in
Can't establish reliable connection to the server.
This could be a temporary problem. Try again or connect to another Wi-Fi network."
i have no idea what to do ARGGGG HELP PLZ!

MxZeal said:
I just bought a nexus 7, came home and spent 3 hours trying to connect this to wifi and it doesn't work... meanwhile i have 9 devices connected wireless that never had problems... -_-
when i first start my NEW nexus 7 and get to select wifi page.. i select my wifi (which shows 3 bars) i enter my correct password and it just loops from "connecting.." to "obtaining ip address" over and over after hour of that i got fed up and tried connecting manually .. i tried using ip/dns from ipconfig in cmd didn't work.. i went to my iphone and copied the wifi adress settings to my nexus 7 and it said connected
but when i went to next i logged into my gmail account and i get this
"Couldn't sign in
Can't establish reliable connection to the server.
This could be a temporary problem. Try again or connect to another Wi-Fi network."
i have no idea what to do ARGGGG HELP PLZ!
Click to expand...
Click to collapse
Expected it is not any Hardware issue, it seems your pb is related to your PW. try desabling it from your router (just a short time for test) or go to a free wifi place to check.
Also keyboard issue, do you use the standard one?
good luck

lolo9393 said:
Expected it is not any Hardware issue, it seems your pb is related to your PW. try desabling it from your router (just a short time for test) or go to a free wifi place to check.
Also keyboard issue, do you use the standard one?
good luck
Click to expand...
Click to collapse
Had this issue before with a bunch of Samsung phones turns out I had so many devices trying to use the same IP address set up by my router. I had to reset my router and assign each device its own IP address.
Sent from my Nexus 7 using xda premium

May also need to check the routers settings for maximum allowed wireless devices, or maximum dhcp users.
Sent from my Nexus 7 using xda premium

The obvious thing in your router configuration is that connections are being restricted to a list of hardware mac addresses.

peterk-1 said:
The obvious thing in your router configuration is that connections are being restricted to a list of hardware mac addresses.
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Click to collapse
The obvious is that jour Nexus 7 is not working properly, I had exactly the same behaviour tested many changes on my wifi settings, teathering from my phone...=> went back to the shop for an exchange and the new one was working perfectly

WiFi connection is stable, but Internet isn't

Somebody please delete my previous thread (wrong forum), thank you: http://forum.xda-developers.com/showthread.php?t=2707468
------------------------------------
WiFi connects to my router and stays connected at excellent signal strength without any trouble. Internet connection however, always disappears after a minute or so. Then my Dolphin Browser either keeps loading a website forever or gives me some error like "Webpage not available". Same story with stock or any other browser. I'm not sure since how long I have had this issue. It surely existed already when my phone came back from warranty service (and I had sent it there because of very short range of WiFi commonly known problem which they fixed by giving the phone new hardware). I think that upgrade to Android 4.2.2 might have caused my problem, but it was such a long time ago that I don't remember now (I don't use/need WiFi that much, mobile data internet is enough for me).
What I've tried so far:
-rebooting phone and router obviously
-factory formatting the phone
-WiFi analyzer app
-changing all the network parameters and re-setting it up
-WPS connecting
-playing with all the WiFi settings on my phone (proxy settings, ip settings, wifi optimization and other)
-finally, today I unlocked bootloader, rooted and installed custom ROM hoping it'd help (but it didn't and now I lost my warranty lol)
What I have:
HTC One X Endeavor
Android 4.2.2 HTC Sense 5.0
Android Revolution HD 33.1
3.1.10-g7f360be Kernel version
TP-LINK
N750 Wireless Dual Band Gigabit Router
Model No. TL-WDR4300
I'm thinking about installing other ROM, some that works on Android 4.0 or KitKat, could it help?
Oh, and I should add that two different notebooks, Galaxy S4, S3 mini, Xperia X10 and a tablet all work fine with this network :>
I can provide any screenshots, photos, names of devices etc., just tell me what is needed.
HELP!

I have a similar problem with my device, but I just reset my router and it's fine. Maybe your problem is that your phone doesn't receive an ip address. You can check out if you have received an address via settings->wi-fi-> advanced, and check the 'ip address'. If it says ' not available, reset your router and your phone's wi-fi until you get one.

|>/\nte said:
I have a similar problem with my device, but I just reset my router and it's fine. Maybe your problem is that your phone doesn't receive an ip address. You can check out if you have received an address via settings->wi-fi-> advanced, and check the 'ip address'. If it says ' not available, reset your router and your phone's wi-fi until you get one.
Click to expand...
Click to collapse
Nopes, IP reception is fine. Here are all my settings:
Status: Connected
Signal strength: Excellent
Link speed: 26Mbps
Security: WPA/WPA2 PSK
IP address: 192.168.0.101
Proxy settings: None
IP settings: DHCP
As I said earlier, I have been playing with all the network settings above as well as with the phone WiFi advanced settings and it didn't change anything.

Hm…it may be a hardware problem.