I've been experiencing intermittent problems for a while now with my internet connection. It goes something like this. I will connect up a normally using Acer enet management through an integrated Intel PRO/Wireless 3945ABG network connection via a Netgear DG834GT wireless router on Windows Vista 32-bit updated to SP2. I will then start doing some downloading and after about 10 to 15 minutes my connection cuts off with no warning. I then go into the settings for the wireless card and change the ad hoc channel 802.11a to one of the other channels (choice of 36, 40,44,48 or Auto) and after pressing OK I reconnect my internet connection and it fires up first time. Then after the same amount of time I have to do it all over again. Any thoughts as to how this is happening and how I can stop it. I have Norton Internet Security 2012 installed. Normal browsing does not seem to cause this although I did have some issues a couple of months back which were solved by the same route but not with the same issue (or so I have been thinking since that initial fix!). Can anybody help me???