I actually called Comcast for the same reason. We got it down to the fact that the cable modem and my wireless router weren't seeing each other, based on what s

I actually called Comcast for the same reason. We got it down to the fact that the cable modem and my wireless router weren't seeing each other, based on what she saw from her end plus what I told her I could see on my end. We decided to try a different Ethernet cable. In the process of doing that, I realized that I had been prettying up the cables earlier (a fact I had already forgotten about) and had plugged the cable back into the wrong port. Stupid mistakes. If she had me try "reversing the cable" or "blowing the dust out" it would have had the same end result. Boy, I felt dumb!