Can someone please help fix my issue

  I am 99% sure it's the modem.I called in an opened a case last week to swap it..They called my remote site and said they didn't have another modem but Netgear is onsite and should have it fixed..It went down 3 or 4 times yesterday and is down right now. I can't keep asking my sales folks to reboot the modem.

  I either need a different model sent or a fix done today or tomorrow..

  I love Comcast in our remote sites but this is making me (  IT ) and Comcast look bad.