Hi guys. Here is an interesting one for you. For a few days now I noticed that 1 computer on this network has been issued the wrong IP address. It is a Windows XP Pro SP3 PC using a internal Realtek LAN adapter. Using DHCP issued from a 2wire ADSL router Default DHCP configuration IP Address Range 10.0.0.1 -> 10.0.0.99 Subnet 255.255.255.0 Default Gateway 10.0.0.138 However this computer has been issued with IP Address 220.127.116.11 Subnet 255.255.255.248 Default Gateway 18.104.22.168 DHCP Server 10.0.0.138 DNS Server 10.0.0.138 Internet still works but network drive access doesn't. All computers are plugged into a NetGear 16 port network switch with 1 cable going to the 2Wire ADSL router. Everyone else on the network is correct and so was this PC up until last Thursday. The system was being used in the morning. Had a blackout and ever since this problem has occured. Trying a few things gives these results. Restarting the router and network switch - Made no change Restarting the PC - Made no change Disable Windows Firewall - Made no change Disable AVG AntiVirus - Made no change Disconnected LAN cable - Address issued was the default 169 auto config address Reconnected cable - Went back to 22.214.171.124 Repaired Connection - Made no change IPCONFIG /RELEASE - Gave address 0.0.0.0 IPCONFIG /RENEW - Gave address 126.96.36.199 Used Setup Network Connection Wizard - Made no change There is only a single LAN adapter in the system and ICS is not enabled. Have got them out of trouble by using a static IP address and everything works fine however doesn't solve the DHCP problem. Anyone have any thoughts what is going on here?