I have a P344W as well as a P344WT wireless router. I have the same problem with both. They seem to loose wireless connection after a while. This can happen while the connection is either idle or active. On my Mac, the wireless signal stays strong, but I just cant do anything on the internet anymore. Dumping and renewing the IP does nothing. Resetting the Mac and/or router seems to help temporarily. If I hardwire the Mac to the router, then it is fine. I also have this problem with my Nintendo Wii. Sometimes it will connect with no problems, and other times it either will not connect at all or will intermittently loose connection. I did verify that I am using the correct power supplies for these routers. This problem happens regardless if I set it up as I want the settings to be (lots of security) or if I reset the settings and just let them at default. It doesnt seem to matter. Anyone know what may be causing this or are ZyXEL just crappy routers? Also, I highly doubt this is a noise interference problem. My house isnt really near any other house/building or anything else that might be emitting interference.