Intermittent Outages All Week Around Upgrade

Xfinity scheduled upgrades in my area beginning on the 14th. However, 2 days prior I started have connectivity issues. AI tells me that it's an upstream power issue and that I need to contact Xfinity (which is difficult to do) to have levels checked. Can anyone verify if that is correct information?

The upstream power signal is at 54,51,54,52 dBmV for all channels.