I have my home network setup though a BEFSR81, which feeds a line to my office in a remote area of the house. I have a WRT54GS at the end of the line which provides a wired PC and my laptop wireless. It works and well at that. I want to upgrade the WRT54GS to a WRT55AG. The PC and Laptop connect to the 55AG fine, but the 55AGs DHCP can not acquire an IP address etc from the SR81, so no internet. I've even tried a FIXED IP method and it failed to connect. Anyone have any ideas as to what I am not doing correctly? Are these incompatible? I can't see why given the 54GS works and I configured the 55AG identically to the setting used on the 54GS Any help is greatly appreciated!