I have been having this issue for 2 months, I agree the customer service text person is no help at all. I reboot all day, they have come out and replaced wire to the house. They say I have no issue, its frustrating to say the least. I have tried to get the CEO email address but not available. I have emailed a form that is supposed to go to the CEO/ we will see?
I have similar problem. My Internet connection is frequently interrupted. I called xfinity many time. But they don't fix it. They just restart internet router
Insist they come out and then call Billing and ask for credit. Comcast has been good about giving me credit. I had them out 5 times before it was fixed. WhereI live, we have overhead lines. With our southern storms, it's not surprising when lines come loose. The last guy that came out checked the connection down the street and that made all the difference. Good luck. It's maddening dealing with Comcast.
I have been informed today by an xfinity tech that the xfi modems don't allow for the 2.4G and 5G to have different passwords. There was an update at some point that doesn't allow for it. Luckily I still had my old modem from them and it works just fine even though they said that the update wouldn't allow it on the old one either.