I am running a Linksys WRT310 with DD-WRT in client bridge mode. I have had no problems with it until today. I have four devices wired to the wrt310. 3 of the 4 have no connection issues but 1 of them will not connect to the internet. The pc that won't connect is running Windows 7 Ultimate 64 bit. I am losing my mind trying to figure out the problem. Everything worked fine last night and now there is no internet on my main pc. I saw there was a critical windows update so I restored it to a previous point and that didn't help. I have rebooted the router multiple times, tried a static ip and switched the cable to multiple ports of the router. The problem must be with the Windows 7 machine but I don't know what it is.