And not a word about the router settings. For example all this does happen on insecure wifi routers and of course routers that have issues. But your post does not reveal the settings.
While we cover this in the Cnet Networking Forum STICKY posts here's the short version.
1. Router defaults.
2. Simple SSID that is broadcasting (hidden SSID can mean drops.)
3. WPA or WPA/WPA2 or WPA2. Use the settings your machines support.
That's it. Do not hide the SSID, don't use MAC filters and don't think that open or WEP helps.
We have Comcast broadband internet and there are four us, myself and three other roommates. We have two fairly new hp?s running vista, and two brand-new mac?s. Since we moved in (a year and a half ago) the wireless internet has been a craps shoot. We have bought both new modems and new wireless routers, which are a top of the line Motorola modem and a top of the line Linksys router. Neither have seemed to make much of a difference, the wireless still cuts in and out. Sometimes we can all use it all day with only a few problems. Sometimes the two hp laptops won?t be connected but the mac?s will. Sometimes none of us can stay connected for longer than 2 minutes without being disconnected, only to be re-connected 2 minutes later and the cycle continues. Our house is an older house with what I would consider questionable wiring. When we unplug the router for a few minutes (and re-connect it) we get connected for a period of time and then it starts back with cutting in and out. The same goes for the modem, whether we unplug or re-install it will work for a short period of time then start back up with the same problems. When my roommate direct connects to the router with an ethernet cord the problems mentioned prior still persist. Were all college students and need the internet more than anything, comcast has done nothing but provide us with an unreliable internet service. Any help would be greatly appreciated thanks