Sounds like my exact same situation.
The person I spoke with at Xfinity went through all the same diagnostics. He stayed with with me on the line while I jumped in my car, drove miles away to a school parking lot to try remote live. He flipped a switch, pushed a button, or not sure what he did. Everything seemed to work after that. I asked, if this happens again, can I get an upgrade to the XB8, as widely recommended by folks on this Wyze forum? At first he said I would have to upgrade to get it. When mentioned that my cameras worked perfectly when I had the old XB3, a month ago, he said he would “talk to a supervisor”. He came back after a short hold to say I could upgrade to the XB8 for free and my local store had one in stock.
I thanked him and after about an hour and a half on the phone, we hung up. (Finally, all eight of my various Wyze cameras were working……for about a day.)
When I went to the store, the [Mod Edit] kid wouldn’t let me exchange to new XB8 for free. [Mod Edit]
I gave up and went out and bought all Kasa brand cameras. They have worked great now for a couple weeks.
I am totally convinced now that there is some sort of firmware firewall issue with the XB7 that shuts out specifically the Wyze cams remotely. Wyze has their own issue that their firmware cannot work with this Xfinity firewall the way everything else does. (All my other WiFi stuff, lights, outlets, heater, garage door, have always worked fine)
I’m done with Wyze.
MOD NOTE: Post edited to conform to the Community Guidelines.