N1 - Can't connect to any Wifi Networks - Nexus One Q&A, Help & Troubleshooting

Hi,
I'm a SysAdmin and usually can figure out stuff by myself but I'm at a loss here, I feel like I've literally tried everything.
Hope you guys can lend a hand - I've also asked the CyanogenMod community here: forum.cyanogenmod.com/topic/8830-nexus-one-cant-connect-to-any-wifi-networks/
I've just received a replacement nexus one and it just won't connect to ANY Wifi networks (I've tried 3 different ones).
I know for a fact that my previous phone connected without any issues and we have several other wireless devices here that work fine (Printer, iPod, Laptops..)
Behavior:
- After resetting Wifi (disabling, re-enabling), it will scan for networks, it will detect my home network as well as several around my house properly.
- My home network is secured with WPA2, I select my network and put in my passphrase
- It will say "Connecting..." for several seconds then it will go back to "Disconnected" and eventually it will start scanning again for networks.
It seems to be the same issue as several people are experiencing here:
66.102.11.100/support/forum/p/android/thread?tid=63fcb1171110570e&hl=en
Several notes:
- Wifi signal is at 4 bars (maximum)
- It will show my home network as remembered once I have attempted one connection
- As soon as the connection fails (falls back to "Disconnected"), my home network goes Out of Range (!?)
- MAC address is definitely entered correctly in my router's MAC address filtering
- Tried restarting router, modem
- Restarted phone, restored it back to factory settings (tried a factory reset via Fastboot and via AmonRa Recovery)
- Tried with default android 2.2 firmware, Cyanogenmod Stable (2.2) and the latest nightly (2.2.1)
- Tried "Wifi Fixer" (Installed via USB)
- Out of the three networks I've tried, one was open and the two others were WPA
Another thing I've tried is setting up a static IP address.
It gets kind of odd here - my top status bar will start showing the icon as if I would be connected to a Wifi network and if I go into "Settings -> Wireless & Networks", it will say that I am connected. However, I'm not connected to any network (eh?).
I've done my best to browse the filesystem for logs with the terminal emulator cyanogen provides but I don't really know the layout of android. If anyone can point out a path, I can pull out some logs for you.
So, any ideas ?

I too have the same issue but unable to solve it
if you find any answers please let me know too

Judging by several ROMs that have been unable to cure your issue - it looks to be HW issue rather than SW one. There are plenty of reasons why the protocol would fail authentication, and the symptoms you're describing fit exactly how would Nexus behave in case of failed network negotiation. The problem is that failed network negotiation can occur if all the networks are protected by MAC access filter which doesn't recognize your MAC, but it's not your case - so it might be some other negotiation failure, which might be HW-related.

Jack_R1 said:
Judging by several ROMs that have been unable to cure your issue - it looks to be HW issue rather than SW one. There are plenty of reasons why the protocol would fail authentication, and the symptoms you're describing fit exactly how would Nexus behave in case of failed network negotiation. The problem is that failed network negotiation can occur if all the networks are protected by MAC access filter which doesn't recognize your MAC, but it's not your case - so it might be some other negotiation failure, which might be HW-related.
Click to expand...
Click to collapse
Do you know if Android logs events or errors ? I'd really like to know why it fails.

fooraide said:
Do you know if Android logs events or errors ? I'd really like to know why it fails.
Click to expand...
Click to collapse
adb logcat
Or install alogcat from market..

If you're rooted, you might be even better off dumping /proc/kmsg

Even though you say the MAC address is entered correctly, I would turn MAC filtering off at least temporarily just to be 100% sure something funny is not happening.
I've also had problems with hidden SSID, might broadcast it temporarily if its in fact off

crachel said:
Even though you say the MAC address is entered correctly, I would turn MAC filtering off at least temporarily just to be 100% sure something funny is not happening.
I've also had problems with hidden SSID, might broadcast it temporarily if its in fact off
Click to expand...
Click to collapse
Tried turning MAC address filtering off but no go - I doubted this could had been the issue since my device can't connect to an open network either.
The SSID broadcast isn't the issue either.
I'll try and look into the logs later tonight and see what I can dig up (thanks to those who hinted at how I could look them up)

Related

The massive wifi problem that many experience

When I turn on my phone at work, the wireless connection (open unsecured) connects and works for a few minutes. After some time, it disconnects and without rebooting my phone, I cannot establish a wlan connection.
This is oly the case at work. At home it works flawlessly, but it is another network kind.
Anyone found a solution to this problem? I saw a lot of threads about this but no good answers.
I am using duttys v3.
Not sure. Perhaps there is some sort of time out on your work network for inactive devices, or dhcp ip releases or something weird and "networky" like that?
Or perhaps your phone is going into a power save mode if you are not using it?
Just general ideas, I don't have this particular problem
I dont think many people have this issue! you must not have a setting correct, try downloading KaiserTweak and adjusting the timeout and also take a look at the routers settings I find it strange that a business would have an open network for security issues
austinsnyc said:
I dont think many people have this issue! you must not have a setting correct, try downloading KaiserTweak and adjusting the timeout and also take a look at the routers settings I find it strange that a business would have an open network for security issues
Click to expand...
Click to collapse
I work at the university, and the network is unsecure. You have to enter login and pass at a webpage to gain access.
I cannot reconnect at all once ive been disconnected. So it should have anything to do with kaisertweak or timeouts.
I have tried every setting and combination. I have tried to select work/internet settings. Ive tried to tell the phone its a hidden network / not hidden network. I have tried to use power save / performance mode. Ive tried to turn off 3g, bluetooth, phone (everything basically).
When I tap connect, it says connecting and then it immediately goes to "active" and tries to connect to another network (which I dont have access to).
solwretep said:
When I turn on my phone at work, the wireless connection (open unsecured) connects and works for a few minutes. After some time, it disconnects and without rebooting my phone, I cannot establish a wlan connection.
This is oly the case at work. At home it works flawlessly, but it is another network kind.
Anyone found a solution to this problem? I saw a lot of threads about this but no good answers.
I am using duttys v3.
Click to expand...
Click to collapse
I have worked out the problem.. first if its a WPA enterprise connection, make sure its set to WORK and not INTERNET setting. it will work. my only works with schaps versions not duttys
on my old pda (Acer N50 premium) I had the same problem with my unis network... it would only work (if at all) for a few minutes then nada... but at home it was absolutely fine, quick stayed on and totally responsive... I wonder if it has something to do with the rubbish way unis run their IT...?
Wasted thread
Many do not have this issue.
According to what's being said here by the indiviuals with issues, you're having problems connecting to a certain network...not all networks.
If it were all networks; your device, settings, equipment or rom would be the common denomenator. Since it's one network, it's that network.
Just because a network is or appears to be available, that doesn't mean that you can connect to it.
dwny said:
Wasted thread
Many do not have this issue.
According to what's being said here by the indiviuals with issues, you're having problems connecting to a certain network...not all networks.
If it were all networks; your device, settings, equipment or rom would be the common denomenator. Since it's one network, it's that network.
Just because a network is or appears to be available, that doesn't mean that you can connect to it.
Click to expand...
Click to collapse
no, it could be the phone software. Lets says that a string is added to the registry if the network you are connected to disconnects you; a string that makes the phone cancel connections to the network. And lets assume that the network disconnected you because there is a hidden firewall in the phone software that blocks ping requests, thus making the network believe that the connection is lost and thus disconnecting you. Then we have a moment 22, which is basically something wrong with the phone.
As some readers already pointed out in this "wasted thread", when changing the rom (in one case) or when changing settings from "internet" to "work" (in the second case) there is a great possibility that this problem in fact has to do with phone software and not network.
In my case, it just happens to be neither of the mentioned solutions or any solution that I have found in other threads.
One thing you may want to check is that your wifi is set to max performance. The issue may also be that there is a DNS cache issue, in most cases it can be resolved by manually reconfiguring the connection.
I have been successful in configuring my phone's WLAN to connect to everything from open APS's, WEP, WPA, RADIUS and AP's with proxy redirects, so I can tell you that as with most cases, it's human error.
I have tried max performance.
How do I resolve a dns cache issue? Manually reconfiguring the network did not help (only thing that helps is a reboot).
seattleweb said:
One thing you may want to check is that your wifi is set to max performance. The issue may also be that there is a DNS cache issue, in most cases it can be resolved by manually reconfiguring the connection.
I have been successful in configuring my phone's WLAN to connect to everything from open APS's, WEP, WPA, RADIUS and AP's with proxy redirects, so I can tell you that as with most cases, it's human error.
Click to expand...
Click to collapse

Wireless Wierdness

Help!
I have a Netgear DG834T router as provided by Sky. I have one wired and two wireless connections running into it (let's call them WD, WL1 and WL2 respectively).
On the connections page I can see all of them under "attached devices"...but now I want to connect using my Kaiser (actually an O2 XDA Stellar)
What happens...
On the Kaiser, I get an IP address (assigned by DHCP) as normal - but can't access the internet - or at least, can only access it very rarely - http://www.google.com can't be found, but http://www.bbc.co.uk can. No idea why.
On the router, under "attached devices", not only can I NOT see the Kaiser, but WL1 and WL2 also disappear. WD remains visible. The router cannot ping the IP address of the Kaiser (timed out). If I disable WiFi on the Kaiser, then WL1 and WL2 are immediately visible again. Internet connection on WL1 and WL2 works, even when they are not visible.
I HAVE connected to this network before without any problems.
What the hooting heck is going on, and how do I fix it?
Thanks!
Time to troubleshoot! What happens with this phone on another wireless network. We need to determine if it's the phone or the network. Do you have any friends with a phone like this? Can you use their phone on your network? Do you have any ROMs flashed, has this phone ever been on the network without problems?
If the phone works on another router try looking for firmware updates for the router. Those things really do need to be updated often and it could have something to do with that.
Only have access to one network :-(. Might be a couple of weeks before I can access a hotel one or something like that.
Think next door neighbour has similar phone, but different provider...will try if he'll let me!
No ROMS flashed.
It connected fine when I first had it. As far as I know, I've changed nothing since then.
2 out of 4 answered...with an option on three...I'll get back to you as soon as I've beaten up my neighbour and stolen his phone...
Joke!
There should be somewhere you can go to test that wireless. I can walk outside the building I'm in and find one.
ChumleyEX said:
There should be somewhere you can go to test that wireless. I can walk outside the building I'm in and find one.
Click to expand...
Click to collapse
You = US, me = UK. We still think the biro is a recent invention...
Neighbour's phone on my network gives the exact same problem. I've also noticed that when I click "Renew IP" on the Kaiser it doesn't work...it gives me 0.0.0.0, but will occasionally flash up the correct IP address. It's alomst as if the connection is being lost and remade every few seconds. The status ist gives me is "associated to network"...is that different to "connected"?
I've been trying to solve this on my router, but none of the settings seem to make any difference.
Same here
I get the same with the router from sky.
Kaiser says I have an IP address, 192.168.0.5, but the it doesn't show up on the attached devices on the router.
What I find that works is hit renew IP maybe twice until you get a really wierd IP address like
169.254.*.**, actually not sure if I'm picking up another network, but for some reason I don't think I am.
I can then browse the web and sync via wifi.
Really pisses me of that it says that it has an IP address but doesn't connect.
1) Make sure you dont have a proxy set up on your wifi connection on your device.
2) The 169. address is your device getting an unauthorised IP address as the router did not receive the correct encryption key from the device.
3) You can check if its an encryption thing by simply logging in to the router (192.168.0.1 in your web browser on pc) and changing the settings to turn wpa off and testing it. The routers username and password are on the card - its something like "sky" and "admin"
Yeah I agree, there is something up with that router.
Grey Area said:
Neighbour's phone on my network gives the exact same problem. I've also noticed that when I click "Renew IP" on the Kaiser it doesn't work...it gives me 0.0.0.0, but will occasionally flash up the correct IP address. It's alomst as if the connection is being lost and remade every few seconds. The status ist gives me is "associated to network"...is that different to "connected"?
I've been trying to solve this on my router, but none of the settings seem to make any difference.
Click to expand...
Click to collapse
with my router.....i have to set the wifi power mode on my kaiser to "best performance", any other setting and i get that "associated to network" ****. been this way every since the hermes and the wizard.
unwired4 said:
1) Make sure you dont have a proxy set up on your wifi connection on your device.
2) The 169. address is your device getting an unauthorised IP address as the router did not receive the correct encryption key from the device.
3) You can check if its an encryption thing by simply logging in to the router (192.168.0.1 in your web browser on pc) and changing the settings to turn wpa off and testing it. The routers username and password are on the card - its something like "sky" and "admin"
Click to expand...
Click to collapse
No, proxy set-up as the device was bought unbranded in US.
Because there are issues with this router, encryption and media streaming devices, I have only restricted the mac addresses with no encryption.
Still don't know about the 169. ip address beacuse doesn't seem to come up as am ISP.
Now then, how wierd is this?
After all these issues and kind of giving up on it as a bad job, I also noticed that out on the road, my GPRS wasn't working either - TomTom couldn't connect to the "plus" traffic service.
I get on the phone to O2 who told me that my phone hadn't been "provisioned". After one false start where they didn't seem to do anything about it, I have just (literally) had them tell me to go to the O2 Operator settings and tell it to update the "O2 UK Post Pay_GPRS" and reboot.
GPRS now works. And magically, so does my WiFi - IP address negotiated and full access to internet and my router's setup page granted. Working like a charm again.
So - seems to me it's an account setting, and nothing to do with either me poor ol' router or me nice new phone.
For completeness, I was occasionally getting the 169 IP address too, so it sounds like we have EXACTLY the same problem - suggest you get onto your service provider ASAP.

Wifi problems

I am unable to get Wifi to connect to any network! The device shows me the available network and everything, but it says it's connecting to them and then it just says they're available. It was working fine for 2 weeks on this rom Ultimate-X2.V9 and just stopped yesterday. Its a Kaiser
Any solutions? Suggestions?
if they are not your wifi router networks they could have added mac filtering to keep you out
otherwise maybe their firmware require an update or they just need a restart all the connects handheld devices make often confuse the dhcp in the router
I've got the same problem, but they are my networks, and they've all been restarted.
One network especially doesn't have mac filtering applied, but has SSID hidden, which is fine, but it still won't connect.
I have been dicking about with changing Roms recently, but am back on the stock HTC rom, so wondering if something could've messed up the Wifi abilities.
Thanks,
Hi,
I have the same problem on my kaiser, with every rom I've tried.
On a previous rom, I found a reg key which prevented wifi to connect, and it resolved the problem, but now I can't remember what the key is...
Wifi APs are detected, identification is sent, PPC asks for the wep/wpa key, identification seems to succeed, sometimes I even get the right IP, but nothing happens, and the PPC stops the connection to the AP after a few seconds...
Very annoying
I should add, all routers in use are fully up-to-date with their firmwares, and recently I've been receiving a message saying "Shell32.exe" issue.
I get the option to send the report to M$, however the ironic problem with that is I need the network to use it!
I've just flashed my phone back to the original Orange ROM, so I'll see how that goes now, but when I did manage to connect to my home network, it would connect, allow me to even refresh my IP, but not allow me to access any websites, use any installed applications etc.
same problem
but it happend after i installed moorhunn.
Little better after i uninstalled it but my kaiser still drop the connection in a few seconds and want to turn on the 3g connection instead...
I getting an error message that says"no active programs is started".

[Q] Cable modem/router: Wifi signal ok but no connection

Hi guys,
My phone: Samsung Galaxy S3, GT-I9305, Android 4.1.2
I changed the ISP (Germany: To Unitymedia) and are now supposed to use a cable modem which as well serves as wifi router. My hardware is TC7200 (Technicolor).
After setting up everything, the wifi connection to Win 7 laptop and Apple iPhone/iPad is working fine (also LAN connection to laptop of course).
The S3 showed a funny behavior: It is possible to establish a wifi connection and it gets IP address assigned. Default gateway, DNS server looks all fine. However, this is only the wifi signal but not an internet connection. It is not possible to reach any website.
The strange thing: If the google site is cached (from a different connection and then switching back to this problematic one) I can run a google search and get results displayed. However, it is not possible to open any websites displayed as results here.
I tried several things based on suggestions in the net, like restarting the s§, using static IP address, changing wifi ports, disabling wifi encryption completely, restart the router, factory reset the modem/router. Finally I performed a factory data reset for the S3 but this as well, like all other things, did not help. The phone was never rooted until before yesterdays factory reset, because I wanted to use Titanium Backup which requires root rights.
Of course, in all other wifi networks so far, this S3 works absolutely fine!
I am not sure if this matters at all, but with the new ISP I got an IPv6 IP address while before I had IPv4.
To be honest, it might simply be a hardware problem which has to be fixed by Firmware upgrade by ISP. This problem is sort of known to them and when I called in they promised a firmware update in November. But anyway, it would be interesting to understand more about it and usually there is a solution for everything Nevertheless, I couldn't find a solution in any forum yet.
Any suggestions / ideas welcome.
Thanks!
EDIT:
Post already moved.
Reads like wrong settings more than hardware .
WiFi is kernel you can flash a kernel .
But i would reboot router and phone then set up wifi with no security first .

windows pc desktop/laptop and router settings help

There used to be forum sections relating to this, but searching keeps bringing up windows mobile.
I'm in need of help with something and honestly this place, and the people here are the only tools I trust.
My issue isn't version specific (actually on 8 now as I'm in middle of doing updates again) and was having network issues.
Using linksyssmartwifi.com to check for issues, there were over 50 devices connected, and I had to clear them.
Installed nmap but clueless on how to use, as a scan shows zero results, while website interface to my 1900wrt shows new list of current devices.
Entering their ip address into browser just brings up search, instead of taking me to device. Mac address search doesn't tell me much. And clicking on device info in interface just shows ip and mac with no os or manufacturer info.
I'm not trying to hack into the devices connected, I just want exact info as to what, and who it belongs to, before I block internet access from the mac address.
Changing ssid and password isn't a fix, turning off broadcast ssid isn't either. I have an undisclosed test item in home that we are basically under contract to keep hush, and requires an app to make work, and getting into it to setup to connect to hidden network isn't an option.
Would like to also setup router so that when someone connects, I get an email notification or something so I have to approve their connection. The kids have friends that drop by and connect.
Looking at not connected devices, I seen some things that caught my eye, android-(and a name I don't know). As well as random numbers and letters for names. I have cleared them all, but can't stop them from connecting again if they have ssid and password. Only disconnect them, but I don't know which is safe or not.
I want my router to notify me of connection attempt, then someone in the house has to tell me it was them before I let them in, whether at home or remotely using Linksys app.

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