Wireless laptop, Gateway with Windows 7. I'm on wireless exclusively. Maybe 15-feet from the router and only windows between us (no massive walls, etc.). Sometimes when I go to connect and have 4 bars (strength "strong"), I get an error message that I can't connect. Try several times but no connection. I walk the laptop into the room w/the router and it connects, go back into the other room and all is well. Any thoughts? Very frustrating. Thanks.