My girlfriend has a Toshiba A135 laptop, whenever she watches movies (Uses the net connection bandwidth rather largely) sometimes every now and then (can be 15 minutes, can be 2 hours) her wireless disconnects and reconnects.
It seems to disconnect and have the little ! yellow exclamation sign until its reconnected again at the bottom bar, where it states you would be connected, mainly because I believe it is trying to reconnect and hasn't fully yet.
I'm wondering what options I have here. I am using Vista, and the wireless drivers are updated. Could it be the wireless card itself, the wires, or something different? The router is VERY CLOSE and I have other computers connecting to it just fine.
This also had issues when we made a ADHOC network where she was connected to my computer to get internet, when we did not have a wireless router. It would often do the same thing (disconnect randomly and reconnect on its own).