Okay, I am running Windows 7. I am using a Arris Surfboard SB6141 DOCSIS 3.0 Cable Modem and I am using a Netgear N300 Wireless Router WNR2000v3. Lately I am losing my internet connection for short periods of time. When I go to look at the Modem, all of the lights on the front appear to be working as they should. I am also running a C.Crane WIFI internet radio. I am getting a Internet Signal from Comcast. The signal provided by Comcast from the beginning, has been low and they provided me with an Amplifier that was installed in my basement.(which I am not very happy about that they are allowing me the pleasure of providing power for their signal). So to my question how can I trouble shoot this problem? My suspicion is the Comcast Signal and I would hate to buy a Modem/Router and find out that the Comcast Signal is dropping down and back up. Pretty disgusted with the situation. Any help?