I've been having issues with my old wireless router (a Linksys WRT54G v5) - once or twice a month it just locks up and stops passing traffic through. When that happens I have to either bounce the router or at least go into the admin interface, change a setting and have it refresh. This has been highly annoying and given that I run this web site on a server at home, disruptive. Through some web research plus trial and error over the space of a few months, I determined that it had something to do with the wireless connection itself; so for the past few weeks I've had wireless disabled. My house is wired for ethernet anyway.
But who wants to pay for something and not get it? I do occasionally want to work upstairs in the dining room, and my wife's PC is plugged in up there, so wireless (assuming it works) is the way to go. So I bought another router. This one's a Linksys WRT54GL, Linux-based, with excellent reviews. I installed it tonight and put a third-party firmware on it (DD-WRT). The new firmware has tons more options, and so far, the unit seems to be working like a champ. Problem solved! I hope.