Wireless Stopped Working on Laptop - Fails to get IP address
Hello.
My wireless networking is broken on my ThinkPad T60. It has worked in the past, but no longer. My OS is Slack 12.2 and I'm using Wicd 1.5.6. Here is a description of the problem. When I open the Wicd window, it displays the wireless networks it can see, as it always has. When I try to connect to a network, even one I have successfully connected to in the past, it sits for a long time trying to get an IP address and then fails to connect. I could use some help debugging this. Here are the sanitized lines from wicd.log from the failed attempt, followed by my successful wired re-connection. Code:
2011/07/20 09:24:47 :: Setting hidden essid**** Code:
# iwconfig Thanks for your help. |
I don't know if this will help but here is my output from my lenovo X61 Laptop:
Code:
root@lenovo:~# iwconfig I noticed, in your output, that you have no 'Access Point'. Perhaps, the wifi card is turned off? HTH, |
I suspect that the access point would not get a value unless the wifi is connected. Since I can't connect, I cannot run iwconfig while connected to test this.
Although my T60 has a switch, it is ignored by the wireless driver. The fact that I can see wireless networks suggests that the card is on. |
What about uninstalling your existing Wicd and installing a new version?
Actually, now that the memory popped back into my brain, I once had the exact same problem as you describe: Code:
When I open the Wicd window, it displays the wireless networks it can see, as it always has. When I try to connect to a network, even one I have successfully connected to in the past, it sits for a long time trying to get an IP address and then fails to connect. |
Quote:
In the case of the network I attempted to connect to in my example, there is no key to enter. In terms of the network in my home, it used to work with the same settings that are there now. |
Just a quick update. I did an upgrade to version 1.5.9 of wicd from the slack repository. I connected to my home network, got an IP address, but nothing would route. In the "External Programs" tab of the preferences box, I noticed that at some point in the past, I must have changed the DHCP client from Automatic to dhcpcd. When I changed this to Automatic, I successfully connected, and even posted this message wirelessly.
|
Quote:
This morning, I again tried a wireless network in the office. It is open with no encryption. I could not get an IP address. Again, I have used this network in the past. I will try booting the laptop in windows to see if it's a wireless card issue. Meanwhile, any other thoughts? |
I'm interested in the solution to this problem because I get exactly the same problems when trying to connect to unauthenticated essids. WPA works fine and I haven't tested WEP. I'm running -current.
|
Your device might be broken broken. For me it seems that USB wifi cards work well ca. 2 years. Try different adapter to be sure it is not a hardware fault.
|
I've never used wicd... do you maybe want to try connecting from the command line? not sure if that will solve it but it cant hurt to try.
if your network doesn't need a password, then I just connect with: $ iwconfig wlan0 essid foo ...foo in your case would be SMH_Guest it looks like, but any essid is viable, then $dhcpcd wlan0 I'm just curious of what the output of this is. If this and wicd do not work, it very well may be a hardware malfunction |
oh, and bonixavier,
I actually have the opposite problem, I have difficulty connecting to essid's that require a key. how do you connect in this situation? I'm doing everything from the command line, what happens is I execute: $ iwconfig wlan0 essid arbitrary_essid $ iwconfig wlan0 key associated_key_to_arbitrary_essid $ dhcpcd wlan0 and it seems to always fail. sort of frustrating when it connects to unauthorized networks just fine. any advice is much appreciated |
Quote:
Code:
# iwconfig |
By any chance did you edit the rc.inet1.conf file in /etc.rc.d/? If so, you might want to read this:
http://slackware.osuosl.org/slackwar...ADME.SLACKWARE Here's an alternative for you to try if wicd doesn't work. Take your time and read, you'll learn a lot :) http://alien.slackbook.org/dokuwiki/...e:network#wicd |
This gets more and more puzzling. Last night (July 29) I started wireless at home manually. It stayed connected all evening (several hours) with no issue. Today (July 30) I connected using wicd. It has remained stable all afternoon.
I guess this rules out hardware? I will still try connecting to the open network manually next week and report back. |
Quote:
Code:
# iwconfig Obviously, the dhcpcd displays failure to contact a server and obtain an address. |
All times are GMT -5. The time now is 10:53 PM. |