Database Users

Wifi scan fix??

Iv been having the same problem as a few others where when I turn on my Wifi sometimes it will connect within seconds and other times it will be stuck on 'optaining ip address'.
Im currently on redpill v4 with kholks 1.2ghz kernel but have switched between different roms and kernels and it wont stop!
The other kernel I use is fauxs 1.3ghz kernel and can't find a certain fix for the problem
Cheers
Sent from my MB860 using XDA App

It's most likely a router problem, not a phone one. Look for updates for your router software, they might fix those kind of stuff
PS: You can always set up fixed IP addresses on your phone if it's still an issue.

turl1 said:
It's most likely a router problem, not a phone one. Look for updates for your router software, they might fix those kind of stuff
PS: You can always set up fixed IP addresses on your phone if it's still an issue.
Click to expand...
Click to collapse
The OP meant the toggle switch sometimes connects and other times gets stuck obtaining IP. You have to push scan manually to get the IP at all. Not a router problem as it is sending the wifi, but sometimes the phone is not registering its there.
Sent from my MB860 using XDA App

I imagine the devs will fix the issue after cm7 is done
Sent from my MB860 using XDA App

I second the router problem. I have to reset my router sometimes to connect.
Iphone > galaxy s 2.

No its not a router problem because it happens wherever I go, its not always happened, just since iv started flashing, when it says obtaining ip it can't actually be doing that because its not scanned and found any networks yet
Sent from my MB860 using XDA App

I had this problem with froyo. When we all got gb it went away.
Sent from my MB860 using xda premium

I have a slightly different problem. When I'm at home on my network, I always connect, fine and dandy, with no interaction needed from me.
At work, we have an open network, but one that requires you to open a browser and agree to the terms and conditions before you can browse. That's probably not anything to do with the issue, but my phone will get stuck in a scanning.... connecting.... disconnected loop. It will never say obtaining IP address during this loop. And then all of a sudden, I'll look at my phone, and there will be the wifi bars in the header. It just all of a sudden decides to work. SHRUG.

jettrue said:
I have a slightly different problem. When I'm at home on my network, I always connect, fine and dandy, with no interaction needed from me.
At work, we have an open network, but one that requires you to open a browser and agree to the terms and conditions before you can browse. That's probably not anything to do with the issue, but my phone will get stuck in a scanning.... connecting.... disconnected loop. It will never say obtaining IP address during this loop. And then all of a sudden, I'll look at my phone, and there will be the wifi bars in the header. It just all of a sudden decides to work. SHRUG.
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Click to collapse
something i tried and has seemed to work. if you go into wifi settings then press the menu key you will see an advanced option. in there is a wi fi sleep police. i changed mine to never from never when plugged in even though it was never plugged in and so far so good.

N7 won't connect to wi-fi after I wake it up after a while

Hi I've got problem with my N7 and maybe anyone else experienced it and have some solutions to this ?
After not using my N7 for little longer when I try to wake it up it doesn't connect to wi-fi automatically. I mean the wi-fi icon is there and wi-fi is ON but the icon is grey. I have to turn the wi-fi off and on in settings then icon in right upper corner of the screen gets blue again and I can browse internet etc.
It's not really a big deal but it can be frustrating sometimes, especially when you wait ages for page to load and then you realize that wi-fi is dead again.
I've got my N7 only two days but this already happened like 5 times.
Got other devices that connect to the same router and they are all working fine. HTC HD7, Nitendo 3DS, Acer Laptop, PS3.
Using D-Link router with WPA-Personal WPA-2 Only security settings.
Any idea how to fix this ?

rootpl1165 said:
Hi I've got problem with my N7 and maybe anyone else experienced it and have some solutions to this ?
After not using my N7 for little longer when I try to wake it up it doesn't connect to wi-fi automatically. I mean the wi-fi icon is there and wi-fi is ON but the icon is grey. I have to turn the wi-fi off and on in settings then icon in right upper corner of the screen gets blue again and I can browse internet etc.
It's not really a big deal but it can be frustrating sometimes, especially when you wait ages for page to load and then you realize that wi-fi is dead again.
I've got my N7 only two days but this already happened like 5 times.
Got other devices that connect to the same router and they are all working fine. HTC HD7, Nitendo 3DS, Acer Laptop, PS3.
Using D-Link router with WPA-Personal WPA-2 Only security settings.
Any idea how to fix this ?
Click to expand...
Click to collapse
Mine is grey as well after waking, but I can browse just fine with the Grey icon... No idea why.
Sent from my Nexus 7

No problem here with Linksys WRT54GS running OpenWRT firmware and also my phone's hotspot. It's probably the crappy firmware in your Dlink access point router. Try a newer version from Dlink or try an alternative from OpenWRT, Tomato, etc.

I've got latest firmware on my router.
Tried to change settings in my N7 with static IP but that didn't helped either.

same issue here
I have the same problem on my N7. It's the same whether I'm using it on my Airport Extreme or wrt54g.
Wake from sleep, see WiFi status icon all gray, no internet access. Turn WiFi off then on, reconnects and I'm on my way. Very annoying after the 50th+ time.

Mine wakes up in airplane mode and I have to press the power button to turn airplane mode off.

When the wifi icon is grey, it just mean that you´re not connected to Google Servers, but you can still use the internet.
When it connect to google servers the icon turns blue.
And i think that when the screen goes off it disconnect from google servers, and then it try to connect again when the device is waked up.

I did not know that. I learned something new today!
Bit ot, what about the bluetooth icon? Most of the time it is gray connected with tablet talk. Sometimes blue? Really thought the icons just did not refresh right away.
Sent from my Nexus 7 using xda app-developers app

Wireless is connected but gray and nothing works! Any solution/permanent fix?

I've seen some chatter about this buried in other threads, but I wasn't able to locate a dedicated thread...so if there is one, sorry about a duplicate post.
So I have a Nexus 7 and a Galaxy Nexus phone and both have this issue. The issue has occurred in multiple environments with multiple routers/networks.
Basically, the wireless on the N7 and both the wireless & cell on the Galaxy Nexus go gray but show as connected with a strong signal. However, there is no IP traffic being routed. The devices have an IP address, and show correct DNS and default route locations and the wireless symbols even show data moving (the little bidirectional arrow deal) but nothing actually happens on the device.
Some have said this means you are not connected to Google's services like Gmail and what-not, but that isn't the case either as you can't ping from the device nor can you go to any websites in the browser, get new mail, get web data for other web enabled apps, or in the case of the phone, get text messages or phone calls.
The only *fix* I've found is to turn off wireless, wait a minute, and turn it back on. This can be really annoying when you have to do it 5-10 times a day on the tablet and it really sucks when you find you miss calls, texts and emails on the phone.
I notice this has never occurred with any of my other Android based devices or iOS devices. This would lead one to believe it has something to do with Jelly Bean and perhaps some background task crashing or something.
Does anyone else experience this? If it were just my phone or just the N7 I would think I had a defective device, but since they both display similar behaviors at different times with different routers on completely different networks, it seems more software related since the only thing in common is that they are both Android 4.1.x devices (it happened on 4.1.1 and now 4.1.2).
I would love to know if there is a real fix for this somewhere!

I fixed mine by getting a new Netgear router...
Sent from my Nexus 7 using xda app-developers app

rmm200 said:
I fixed mine by getting a new Netgear router...
Sent from my Nexus 7 using xda app-developers app
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Click to collapse
Again, it happens with multiple routers from the lowly Linksys to Netgear to D-Link to Checkpoint and several more. This is NOT a router issue.

I was having to power off my Linksys router several times a day to allow dropped devices to reconnect again. What happens when you power cycle your router?
Sent from my Nexus 7 using xda app-developers app

What router settings and security method are you using? WEP, WPA? try changing the channels on your router or something

From what I experienced, it is connected to the router but somehow the router has lost net connection. Rebooting DSL modem fixes it for me. I have DSL connection here in Philippines, the telco provided a zyxel dsl modem. From the DSL modem I have Tomato flashed router. Rebooting the DLS modem fixes without rebooting router or the n7. In N7 from gray it turns blue and i can see the up / down arrows, net access is working.

I get the impression that my request/question was too long as it seems people are not really reading. Either that or they are not getting it because they either never experienced the problem, or because they don't take their N7 around like I do so they think it's connected to their home router.
This problem happens at about 8 different sites. Every site has a different router and a different internet connection from DSL to cable to T1.
This problem happens with both my N7 & my Galaxy Nexus and not at the same time at the same site.
I do appreciate people trying to help, but this clearly isn't a router issue but rather it is an Android issue. Focusing on the router really isn't helpful because there is nothing in common. Even the encryption varies from open networks like at a coffee shop, to WEP (yeah...seriously) to WPA to WPA2.

Nexus 4 WiFi Problem

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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Click to collapse
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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Click to collapse
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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Click to collapse
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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Click to collapse
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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Click to collapse
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?
Click to expand...
Click to collapse
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!

[SOLVED] Any idea what is wrong with my WiFi?

Hey all,
I just received my Nexus 7. I'm having trouble with getting connected. I can connect to the router fine, and the WiFi indicator turns blue, but I can't access the internet or occasionally will be able to load a tiny bit of data and then it stops.
I've been able to get a little better access by choosing a static IP instead of DHCP, but it's still "choppy." For instance using the Speedtest.net app I'll get a burst of data, then it flat lines. Burst, nothing, burst, nothing, etc. Chrome will sometimes load a page and sometimes it will time out. GMail has been syncing very slowly, every once in a while populating some more conversations.
I've tried my GNex at the same time and have no issues, as well as on my PC, so it's not an issue with my ISP.
Any ideas what I can check? I hope I didn't get a defective unit. I ordered from newegg and I don't know how they work with returns and exchanges.
Thanks in advance for any insight.

How close to the router is your nexus?
Sent from my Nexus 7 using Tapatalk HD

Fairly close. I show 2 "bars" of connection and in the WiFi panel in the settings it says the connection strength is "good."

Try moving right next to the router and let us know if the problem persists.
Sent from my T-Mobile G2 using Tapatalk 2

hawaiizach said:
Try moving right next to the router and let us know if the problem persists.
Sent from my T-Mobile G2 using Tapatalk 2
Click to expand...
Click to collapse
Issue persisted even when a few feet away from the router. However, performing a factory reset on the Nexus and power cycling the router seems to have remedied all the issues. I can connect via DHCP, browse the web just fine, and am able to get consistent data on speedtest.net at 20+Mbps.
Everything is working great now, this thing is awesome!

Glad to hear it!
Sent from my Nexus 7 using Tapatalk HD