intermittent connections drops daily

I have an arris sb8200 modem. for the past two weeks I have been experiencing intermittent connectivity problems. I noticed it first while in an online game and then my streaming services seemed to pause randomly. At least one a day I will completely lose connection. all the lights on the modem are still on however. and when I use the xifinity app or contact customer service, they can see no issue on their end. if I unplug the modem for at least 30 seconds it usually starts working again but the problem returns. 

there was a text about planned maintenance on 2/5 and that is about when I started experiencing the problems. I have chatted with three separate people. the first upgraded my internet and that didn't work. the second mentioned something about a boot file being updated but that didn't work. The third suggested i try one of xfinity's gateways. I have one on the way now but I am concerned this won't fix the issue. I have checked my modems event log, but I am not sure what I am looking at or what it means.

any help would be appreciated.