I moved my new AT&T 2WIRE router/modem combo unit to where my HR22 is located so I could connect via an ethernet cable. After several attempts myself and then the tech in that area we were unable to have a successful connection. She then gave me an 800 number for another advanced tech with network services I think. My question is she said I would need to first call my router mfg. and have them walk me thru opening a couple of ports that my router may be blocking. Does this sound like a common issue? I did not want to spend an hour with AT&T to find out that is not the issue. Thanks for any help.