I'm running winXP and recently uninstalled AVG because the free trial had expired and I wanted to downgrade to the free version.
However, after a restart I found that I was not getting DHCP from my wireless router, I seemed to be getting DHCP from a server at 10.254.254.254 giving me the IP 10.254.254.50. These settings are completely new and give no network or internet access. The DHCP record is set to expire every 10 minutes.
If I manually set my IP to 192.168.0.5 and the gateway & DNS to 192.168.0.1 (the settings my router's DHCP should be giving me) I have complete internet access etc.
Other machines on the wifi network get DHCP from the router and connect absolutely fine so it seems to be a local problem.
How can I find out where these DHCP packets are coming from and get rid of it!
PS I've just found that I can ping 10.254.254.254 fine. I don't understand what this device might be - nothing has been added to the network. Looking at the output of arp -a it's MAC address is 00-21-4c-13-4c-fb.