My wireless Netgear router seems to be having issues. I have a laptop about a foot away from the router, and the connection seems somewhat slow. Sometimes for a few seconds it almost seems as if there is no connection, although there's no sign of a problem just by looking at the network icon in the notification tray. There's another laptop in a room about 50 feet away and seems to totally lose its connection at least twice a day. However, when using my desktop which uses an ethernet cable, there seems to be no connectivity issues. How would I go about diagnosing any potential problems with my router or network?