I have two computers that each have a Trendnet PCI Wireless G card in them. They connect to a WRT54G router. Signal strength is very good on both of them. However, when I run the computers with WPA encryption enabled, they will randomly drop the wireless connection multiple times per day. I have to repair the connection to get it working again. The wireless works fine when I leave the network open. Thinking it was a router problem, I tried 2 WRT54G routers and a Belkin Pre-N router. The situation occurs with all of them. I have of course tried the latest drivers and firmware. I'm thinking of going with different wireless PCI cards as a next step. I've tried different channels and everything. Any other ideas? Thanks.