[driverloader] "No DHCPOFFERS received"

[Linuxant support (Jonathan)]

Hi,

the problem seems to be related to this line in the output of the 
'dhclient' command :

---
DHCPNAK from 192.168.1.1
---

It seems that the DHCP server of the access point refuses to give a 
lease for an unknown reason. It is possible that this problem is related 
to a security feature of the access point.

Please reset the access point to its default factory settings. You could 
also upgrade the firmware of your access point.

You could also configure the access point and your wireless interface to 
use static IP addressing instead of DHCP to see if there is a difference.

Regards,


Jonathan
Technical specialist / Linuxant
www.linuxant.com
support at linuxant.com


Jonathan Baron wrote:
> This is probably not a linuxant problem, but maybe someone who
> reads this will be able to help.
> 
> Everything was working fine until yesterday, when I updated cups
> and xorg on Fedora Core 2, and connected to several new access
> points to which I never connected before (but without disturbing
> my dhclient.leases in /var/lib/dhcp, it seems).  Then all of a
> sudden I have trouble getting a dhcp connection.  Ifconfig and
> iwconfig look perfectly fine, but "route" gives no route, and
> when I try to connect to anything I get the optimistic message
> "temporary failure of name resolution."  Hah!  I _hope_ it is
> temporary.  I installed the latest driverloader and that didn't
> help.  Here is a piece of what happens when I run dhclient:
> 
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
> DHCPOFFER from 192.168.1.1
> DHCPREQUEST on wlan0 to 255.255.255.255 port 67
> DHCPNAK from 192.168.1.1
> DHCPDISCOVER on sit0 to 255.255.255.255 port 67 interval 17
> send_packet: Network is down
> DHCPREQUEST on wlan0 to 255.255.255.255 port 67
> DHCPNAK from 192.168.1.1
> DHCPDISCOVER on lo to 255.255.255.255 port 67 interval 12
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
> DHCPDISCOVER on sit0 to 255.255.255.255 port 67 interval 3
> send_packet: Network is down
> DHCPOFFER from 192.168.1.1
> DHCPREQUEST on wlan0 to 255.255.255.255 port 67
> DHCPNAK from 192.168.1.1
> No DHCPOFFERS received.
> Unable to obtain a lease on first try.  Exiting.
> 
> It should be using wlan0, and it did when it used to work, even
> though I was unable to get it NOT to try sit0.  Sit0 is not the
> problem (or not the only problem).
> 
> 192.168.1.1 is the Linksys BEFW1154 access point.
> 
> Jon