In my home network I have a d-link DIR-655 router as wired lan switch, dhcp server and router. I bought 2 DWL-2100APs to "extend" the wireless lan from the DIR-655 but I couldn't get that to work at all.
So now I am trying to get one of the 2100APs to be the AP and the other to be the AP repeater. They are wired together throughout the house, through the DIR-655 switch. They can both act as APs just fine. They relay dhcp traffic to the dir-655 fine. I have to set them to static channel #1 though.
Problem is, if I set one of them to AP repeat the other one, all of my windows PCs start crying that there is an IP conflict on the network and fail to connect (they are wired to the DIR-655)!