Toshiba Qosmio ,Windows 7 ,Motorola modem ,Buffalo wireless router .All drivers reset and Toshiba downloads installed.
Every time the computer goes to sleep mode ,or shutdown ,the Internet connection is lost
Internet icon says :--currently connected to : unidentified network --
No network access . "" Buffalo Router--"limited access"[ but the computer is still connected to the wireless router ,with 5 bars signal.
Explorer icon says "Diagnose connection problem "
Then Reset Network Adapter says: Wireless network does not have a valid IP Configuration.
The cure is to restart the Computer and /or reboot the modem and the Wireless Router.