as clarkson would normally say...u need POWERRRRRRRR

try enabling your wireless zero configuration back.
what laptop are you using?does it independently control the wifi services?like dell, which uses their own software to detect the wifi

wireless zero configuration is how windows controls the wireless connection.under RUN, type services.msc and check if ure wireless zero configuration is ON.

does toshiba use their own software to control the wireless network?if they do, then u had better use their own software.

go to 192.168.1.1 (default) to check ure router's settings...