I recently switched to Comcast Xfinity for both TV and Internet. To set up my internet I'm using a Motorola Surfboard 6121 cable modem. I also purchased TP Link Archer C7 wireless router. I've been having connection problems ever since. Every time I boot my computer up I end up having have to login to the wireless network I set up. Then there are the times that the connection just drops off and I have to reset the router to get the connection back.I've gone to the TP Link tech forums and post questions asking for help to which I got some suggestions. Below is a copy of the suggestions I received. Upgrade the latest firmware(Archer C7_V2_150304) first. http://www.tp-link.com/en/download/A....html#Firmware After upgrade, reset it to factory defaults and reconfigure it. If the problem continues, first, ensure internet works OK when connecting directly to your modem. Second, does it drop connection just wirelessly? Wired connection is stable? Third, can you login web interface of C7 when you cannot access internet? Have tried all this, the problems still persist, I'm ready to cut bait and shop for a different wireless router. Anyone have any workable suggestions on what to do to fix these problems? One other question, when I look at the wi-fi networks available to me I'm seeing them listed as Wi-Fi 2. Can this be changed?