We've also had terrible issues since Comcast "upgraded" our modem to XFi. We've had 3 service calls and replaced the XFi and we're still having issues. My work computer is hardwired to the modem, and it is constantly dropping the internet, so it's not just a wifi issue for me. Prior to the installation of the "upgraded" modem, we never, ever had such massive internet issues. Trying to video conference, or stream Netflix or music is a complete joke. We may have to buy our own modem and see how that goes. I wish we had never upgraded!
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