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Hi folks! since tonight i've a problem with my tab, apparently without reasons, it don't connect with my adsl router...
I've reboot tab, reboot router and flashed tas firmware
someone can help me?
Obviously there must be some changes that you don't remember...Have you tried different router? Which authentication method do you use? WEP, WPA? Try changing them?
Had the exact same problem with my Tab. It connected to my Linksys WRT54GS immediately after inputting the key code when I first got it, worked flawlessly for 2-3 days, then just would not connect anymore.
Spent a lot of time with Sprint and Samsung tech support, but they only could offer the "Factory Reset" option, but still were unsure if that would cure it. I have about seven devices that connect through this router - TV, printer, EVO, laptop, etc. and they all were connecting perfectly so I knew it wasn't the router.
Funny thing was, it would always connect to any open wifi I tried ie. Starbucks, etc. It just had problems with my home WAP-WPA secured router.
I set up a static IP on the router and that seemed to work and the Tab would connect again for a day or so, then again lost the ability to connect. I switched back from static IP to the normal config, and for whatever reason, the Tab connected and has been connecting ever since without issue.
If it keeps cycling through Connecting and Obtaining IP Address when you try to connect then try deleting the file /data/misc/dhcp/dhcp_list
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Tetreaul said:
If it keeps cycling through Connecting and Obtaining IP Address when you try to connect then try deleting the file /data/misc/dhcp/dhcp_list
Sent from my GT-P1000 using XDA App
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Yes! i've tried your suggestion and now it work, thank you so much!
My WiFi was working fine on my Xoom, and now it gets stuck while "obtaining IP address." It says for a split second "remembered" as if it was connected and starts the ongoing circular process of "obtaining IP address" all over again. I saw that galaxy tab users had this same problem and found a resolution by connecting "static" instead of "DHCP." I didn't try that as I honestly don't know how. What I do know is that there are a few devices like my OG droid, my laptop, my mothers' laptop, my xbox 360 that are connected to the same WiFi network. This randomly happened, when I decided to disconnect from WiFi to run a speed test on 3G and I was unable to connect to WiFi ever since. I tried unplugging/plugging the routers, turning the Xoom off and on, and even went so far as to doing a factory reset on the Xoom and I still can't connect. 3G works fine, but I have a 1GB cap and I would rather only use that while I'm on the go, and obviously WiFi is definitely faster. If I can't resolve this, I still have enough time to return this thing. Call me a newb, but I need a little help!
I know you said you did a factory reset, but google stores wifi passwords in the cloud now. Try making the xoom forget the network you're trying to connect to.
My only other thought is that you need to go into your router's configuration and remove the xoom as a remembered device.
Bauxite said:
I know you said you did a factory reset, but google stores wifi passwords in the cloud now. Try making the xoom forget the network you're trying to connect to.
My only other thought is that you need to go into your router's configuration and remove the xoom as a remembered device.
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How do I get the xoom to forget the network? How do I remove the xoom as a remembered device? Sorry but I really don't know how to do that..
EDIT: I went into settings>privacy>backup and restore> and unchecked "back up application data, Wi-Fi passwords, and other settings to googles servers and was still unable to connect.
I think if you long press on the wifi network it will give you the option to forget it.
As for the router, do you remember setting it up? The settings pages where you set the wifi name and password and such.. it should have a section where it tells you which devices are connected.
I have pressed "forget network" on the xoom several times when trying to connect. As for the router, do I remember setting it up? No, as a matter of fact I didn't set it up. Could I configure this thing from my laptop?
droiduser1988 said:
I have pressed "forget network" on the xoom several times when trying to connect. As for the router, do I remember setting it up? No, as a matter of fact I didn't set it up. Could I configure this thing from my laptop?
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Click to collapse
Of course, anything that's connected to the router should let you configure it. It's too complex to explain here, but you need to enter the router through it's IP address and find the configuration.
Find the manual for the router you have and go from there.
I'll try to look into that, any idea as to wtf happened? This is beyond an inconvenience..
I'm having much the same problem. After entering the passphrase it says 'obtaining ip address from....' and thats all. It never connects??? I have tried 'forget' several times and no luck.
I have been able to connect to unsecured wifi with no problems.
Use the free app "wifi static". Config to assign you a static IP on that network only and dhcp on others. Its something within android as I have the same issue in my phone with a few networks but not most.
Sent from my Xoom using XDA App
jcampbell037 said:
Use the free app "wifi static". Config to assign you a static IP on that network only and dhcp on others. Its something within android as I have the same issue in my phone with a few networks but not most.
Sent from my Xoom using XDA App
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OK, tried it. NO GO! After entering the passphrase it STILL says 'obtaining ip address from....' I may be doing something wrong with the app since it comes with absolutely NO directions. If this is going to be an issue average folks will take it back!
Have any of you with this issue verified that the DHCP scope on the wireless network is not full or that DHCP is even allowed? The fact it works one place but not another tells me the issue may be with the network and not the device.
Dave
Sent from my Xoom using XDA App
I was having the same issues as you originally at first until I reset my router and my Xoom.
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je2345 said:
I was having the same issues as you originally at first until I reset my router and my Xoom.
Sent from my Xoom using XDA App
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I also had this issue, I ended up fixing it by upgrading my router BIOS. the version that was on there was dated 2004 (yikes), and though the most current update was only 2006, it seems to have fixed the problem.
That or the reboot after the update as previous poster said and the update didn't really have anything to do with it, but either way it got fixed.
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...
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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
My Acer is stock and was running fine. Now when I try to connect, all it says is obtaining IP address. I tried shutting down and restarting and the normal modem reset stuff...What is happening?
Fourstarzzzz said:
My Acer is stock and was running fine. Now when I try to connect, all it says is obtaining IP address. I tried shutting down and restarting and the normal modem reset stuff...What is happening?
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Had the same with my A500 & Android 3.0. Connected with WiFi (I have two different accespoints at home and tried both) I was able to connect with my home network & server, but Internet connection failed. The same as with my HTC Sensation with an early rom.
This had to do with the DCHP protocol on the router and Android, it is not always implemented as it should. On my HTC I was able to manually assign an IP adress, that's not possible on the Acer. That fixed the problem for then on my HTC. The problem was gone after an OS update.
I turned the WiFi router connection on on my HTC Sensation and connected to the Wifi router with my Acer. That worked and I was able to download an A500 Android update from 3.0 to 3.1 over 3G (365 Mb). Took me nearly an hour, but after installing the update WiFi worked flawlesly.
Hope to be of any help,
Fazer
If it's a home router you are having issues on, try changing channels on the router.
Thanks, Will keep in minder. My.problem is solved after a Rom upgrade on my A500.
Sent from my A500 using xda premium
I rooted and flashed my phone last night and everything was fine other than 1 thing. The Wi-Fi wouldn't connect on my home router. I tried several different roms and was left with the same problem where it was stuck on either obtaining ip address or authenticating. I then came into work this morning and the phone connected to my Wi-Fi network straight away.
Does anyone know how I can get around this problem, don't want to be using up all my data at home!
Thanks in advance
Dont get me wrong but did you try to restart the Router?
Sent from my HTC using XDA Windows Phone 7 App
Timzter said:
I rooted and flashed my phone last night and everything was fine other than 1 thing. The Wi-Fi wouldn't connect on my home router. I tried several different roms and was left with the same problem where it was stuck on either obtaining ip address or authenticating. I then came into work this morning and the phone connected to my Wi-Fi network straight away.
Does anyone know how I can get around this problem, don't want to be using up all my data at home!
Thanks in advance
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I second the other suggestion. Those symptoms sound like your router needs a restart if it hangs at getting IP/authenticating.
I'm having the same problem on the network at my university.
I'm having problems with my wifi as well. We have a network here at my office secured with WEP. My galaxy nexus connects to it just fine but my Nexus 4 refuses. It sees the network, show strong signal but it doesn't seem to connect. I did manage to get it to connect once and I downloaded some updates but then the connection dropped and will not reconnect. I've tried various advanced settings (forcing the network to 2.4GHz, changing the power options, etc... No joy. This is particularly frustrating for me as my micro sim has not yet arrived so WiFi is all I have Hopefully it will work at home. At least there I have access to the router so I can make changes if needed. So far not a fan though.
I've got WiFi problems here, too. Roaming between different WiFi networks (home and university) often results in an non functional WiFi connection. Experienced this problem with stock Android 4.2 on Nexus 4 and Galaxy Nexus and latest CM 10.1 nightly on Nexus 4. Even reboot doesn't help every time.
As workaround: If WiFi connection is broken, turn on "flight mode", wait a few seconds and turn it off again. Works for me, maybe it works for your problems too.
I literally just received my nexus 4, and I haven't done anything with the SIM card yet, I just wanted to get things going on WiFi to start. It sees the network I want, let's me type in the password, and lets me click connect. After that it does literally nothing. No thinking, no obtaining IP address, nothing. Any ideas?
dyslexicpenguin said:
I literally just received my nexus 4, and I haven't done anything with the SIM card yet, I just wanted to get things going on WiFi to start. It sees the network I want, let's me type in the password, and lets me click connect. After that it does literally nothing. No thinking, no obtaining IP address, nothing. Any ideas?
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I have exactly the same problem. Got the phone today and have tried several different access points - no luck. Restart the phone, no change.
Also, system updates screen said I could only download the update to 4.2 from a wifi connection till the 7th, so i set the date to the 7th and did the update successfully over the cell connection. Still no WiFi. Factory reset - no change.
---------- Post added at 09:18 PM ---------- Previous post was at 09:17 PM ----------
Oh, also tried the flight mode "trick" with no success.
Heartbreak said:
I'm having the same problem on the network at my university.
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Your uni wifi probably is LEAP wifi or PEAP wifi, which is proven broken in Android 4.2
ecsk said:
Your uni wifi probably is LEAP wifi or PEAP wifi, which is proven broken in Android 4.2
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It's also broken on my campus. Do you have any suggestions to bypass this?
ecsk said:
Your uni wifi probably is LEAP wifi or PEAP wifi, which is proven broken in Android 4.2
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Click to collapse
My university provides both LEAP and PEAP authentication. LEAP doesn't work for me either. But PEAP works. I'm able to connect via PEAP. (Stock 4.2 / 4.2.1 and CM 10.1)
Here is my log. It appears the authentication is timing out.
12-07 10:42:43.863: I/wpa_supplicant(19563): wlan0: Authentication with xx:xx:xx:xx:xx:xx timed out.
12-07 10:42:45.345: I/wpa_supplicant(19563): wlan0: Trying to associate with xx:xx:xx:xx:xx:xx (SSID='XXXXX' freq=2447 MHz)
12-07 10:42:45.385: I/wpa_supplicant(19563): wlan0: CTRL-EVENT-ASSOC-REJECT bssid=xx:xx:xx:xx:xx:xx status_code=1
12-07 10:42:55.346: I/wpa_supplicant(19563): wlan0: Authentication with xx:xx:xx:xx:xx:xx timed out.
All other devices do connect fine and I even restarted the AP to make sure.
This is getting very frustrating. I couldn't connect to wifi at work (WEP, I know...) at all yesterday. I went home, and my WPA2 network at home worked perfectly. I come in this morning and boom, I'm connected just fine to the wifi here at work (the connection was remembered from my tries yesterday). I went to lunch, came back, no wifi. Reboots, reconnections, nothing seems to work. I also have a Galaxy Nexus with 4.2.1 and it connects to the wifi just fine. Grumble grumble....
-Matt
I did a few tests today and it seems to be only when using WPA2 with a pre-shared key. WPA works, as do open AP's.
jim.k.yee said:
It's also broken on my campus. Do you have any suggestions to bypass this?
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No solution with stock google image AFAIK, because google does not provide 4.1.2 image for Nexus 4. You can try other custom ROM or ask if some one has successful LEAP wifi story about running custom ROM.
BTW I don't own Nexus 4, I am stilling using Galaxy Nexus, as soon as I upgraded to 4.2 LEAP wifi broke, I flash 4.1.2 back then it works fine.
I found that upgrading the access point (MikroTik) to the latest version allows me to connect.
Seems something in this device does not like some older WPA2 versions?
extremewing said:
I found that upgrading the access point (MikroTik) to the latest version allows me to connect.
Seems something in this device does not like some older WPA2 versions?
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My N4 has been connecting fine to my home router over the past two days. Suddenly, today, it stopped recognizing the network (shown as "not in range" in wifi settings). No amount of router or phone reboots would get it to connect. I read in another forum about going to Displays in the settings menu, scroll to bottom - Wireless Displays. Turn on and search for wireless displays, then turn off. I thought, wtf? Anyway, I tried this and it connected to wifi immediately. Maybe there's a bug in the wireless display function that's interfering with wifi.
I am actually having a similar issue as others here, but I have found another weird work-around. Basically, although the Nexus 4 see's my campus's network, no packets get transfered back and forth, and I am not even sure what is going on (The IP address, tho, is usually "unknown".) However, upon going to the campus's IT help today, they turned off mobile data, and it then seemed to connect fine over Wifi. Any idea what is going on here?
There is no "signing in" to the network at my university, it just connects and verifies your device's MAC address, so I don't think they are doing any fancy authentication. I was thinking about maybe flashing a different ROM and seeing if I get different results.
i got mine yesterday and it connects then stops connecting after a couple seconds
Atrag said:
I am actually having a similar issue as others here, but I have found another weird work-around. Basically, although the Nexus 4 see's my campus's network, no packets get transfered back and forth, and I am not even sure what is going on (The IP address, tho, is usually "unknown".) However, upon going to the campus's IT help today, they turned off mobile data, and it then seemed to connect fine over Wifi. Any idea what is going on here?
There is no "signing in" to the network at my university, it just connects and verifies your device's MAC address, so I don't think they are doing any fancy authentication. I was thinking about maybe flashing a different ROM and seeing if I get different results.
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Click to collapse
I get exactly the same issue in my office. I can connect to school open network, but after a few minutes it lost connection (while still showing connected). I got to wifi setting, it shows that there is only one wifi hotspot and i am connected to it. But actually there should be more than five hotspot! If i switch wifi off and back on it can detect all the networks and get connected again, but then it goes to the weird cycle over and over.
Strangely, if i stayed in another office, it is connected all the time. Seems like the signal problem in my office. But i got no problem in my office when i was using galaxy nexus.
I am driven crazy by this!