Has the red indicator on .the troubleshooting results says--- The modem has encountered an unrecoverable error .What's your system status look like? Access it from a browser at 192.168.0.1
Tried that without success , I get that error message when I try to abort anntena pointing and a few more activitie in the installtion menu.Have you tried unplugging the modem for a few minutes and plugging back in?
Is the system light, lit up on the modem.
Check all your coax connections also.