Hello, I am becoming very frustrated with my son's wireless connection dropping numerous times, with no apparent reason, since I have upgraded to the DGL-4500.  When I got this router, I also updated his adapter with the DWA-130.  I am unsure where the problem lies, he will just randomly lose the connection, no error message, connection is just gone.  This never happened with the old Linksys router we had.  I have updated the router's firm ware and have tried to update the usb adapter's driver.  The adapter seems to get very warm, but I don't think this is the problem since the drops will sometimes occur when he first gets on.  Any suggestions?