Reboot your router and whatever it connects to (cable or DSL modem?). I have occassional issues that are similar and that seems to fix it. You cable or DSL provider could do things as part of normal maintenance that cause this.

>I have a laptop running win 7. I have a wiress network at home that I use for internet access. The wireless connection starts by default when windows starts and everything is fine. Now about a week ago for no reason that I can find when the laptop starts the wireless network comes up with limited access with no internet connection. If I disconnect and then reconnect it is fine. I have not made any network changes to windows or the router. Needless to say having to reconnect every time I start the laptop is a pain.
>Any Ideas on how to fix this or what might cause it?
>Thanks