Wicd fails to get IP from wifi router - Unable to connect to Wifi

[oALKALINEo]

I had this problem as well. I fixed it by changing my router encryption from WEP to WPA 2 and it worked. I did this on my windows machine. Hope this helped

[wilian05012]

I was getting the same behavior in WEP, WPA... etc. Seldom i can got an ip address from DCHP.

I stopped using wicd, i get associated with the AP using wpa_supplicant and run dhclient, dhclient3, udhcpc and almost every dhcp client and the problems remains the same. "Unable to get an IP add...".

The problem was no wicd, associations occurs well using WEP, WAP or OPEN. I set manually my IP address and default route and my DNS at resolv.conf, using the following commands and it works.

ip address add <ip_address>/<netmask> dev <wireless_iface>
ip route add default via <gateway_ip_address> dev <wireless_iface>

echo <dns_server_address> > /etc/resolv.conf

Next i decided to browse the content of the file /etc/dhcp3/dhclient.conf. The following line kept my attention (the line states this, literally, including angle brackets)
send host-name "<hostname>"

...and it was uncommented!!

I replaced the value <hostname> with my current hostname like this:
send host-name "linuxbox"

After that:
ifdown <my_wireless_iface>

Launch wicd and everything works as it should.

I hope this would work for others, and yes... English is not my mother language.

best regards to the community!!!

[wilian05012]

I had this problem as well. I fixed it by changing my router encryption from WEP to WPA 2 and it worked. I did this on my windows machine. Hope this helped

Hi:

Check if your WEP key is in HEX ([0-9, A-F])
<example hex_wep_key=c88e6264b/> <= HEXadecimal WEP key.

If this is the case, you must specify so in your wicd connection property, by default wicd consider that wep keys are entered in ASCII, select the correct option here. This is a common source of problems.

If your using a configuration file for wpa_supplicant do not use quotes to enclose the wep key. You can find a good template file for configuring wpa_supplicant using WEP in /usr/share/doc/wpa_supplicant/examples/wep.conf

[isicsk8]

this worked for me.....
I opened wicd and used static ip.

Then used these commands:
iwconfig wlanx mode managed
iwconfig wlanx essid xxxxxx
iwconfig wlanx channel x
iwconfig wlanx key xxxxxxxxx or use key -s xxxxxx (if ascii key)
ifconfig wlanx up

Then dhclient wlanx
went back to wicd and hit connect. It connected.
The only problem is i have no idea why it worked. It just worked all of a sudden and backtracked to see what i did last.
tried this a few times with the same results.

[xenocide586]

my lecturer sorted this issue out for me today.

open yr root

then ifconfig wlan0 up

logged straight onto the wifi network

Thanks! That worked for me. What exactly does that command do (aside from fixing my problem)?

[maverik35]

this worked for me.....
I opened wicd and used static ip.

Then used these commands:
iwconfig wlanx mode managed
iwconfig wlanx essid xxxxxx
iwconfig wlanx channel x
iwconfig wlanx key xxxxxxxxx or use key -s xxxxxx (if ascii key)
ifconfig wlanx up

Then dhclient wlanx
went back to wicd and hit connect. It connected.
The only problem is i have no idea why it worked. It just worked all of a sudden and backtracked to see what i did last.
tried this a few times with the same results.

Every succsessfull conection is saved by network-manager under a file, so the next time you try to connect to the same AP, it knows all about the conection. That is why...Check here and see:
/etc/NetworkManager/system-connections and edit your connection.

If you want to know more, post it, I'll be glad to help you.

BY THE WAY, do not forget to start networking services once you login BT5..Open up a terminal and type:
/etc/init.d/wicd start

Luck.