Mike -  There are a lot of rolling power outages. 
Thus the reason for the overheating most likely as gear, while on battery backup, generally lacks the cooling capacity. 

Horizon, Comcast, Wow/Breezeway apparently are doing the same across the Columbus Marketing in Ohio as well. 

Glenn S. Kelley, Connectivity.Engineer 
Text and Voice Direct:  740-206-9624


IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email by mistake, please notify Glenn Kelley, the sender, immediately and do not disclose the contents to anyone or make copies thereof.


On Wed, Jun 15, 2022 at 5:03 PM Mike Hammett <nanog@ics-il.net> wrote:
I recently saw this on Facebook:

BREAKING: Some Xfinity/Comcast users are getting a message in the Chicago and Springfield, Illinois markets that they are shutting down Internet service until 11:15 PM this evening due to overheating equipment...
Update: some areas are doing rolling outages.


Are rolling outages due to heat something common for ISPs to do? I've never heard of it for any of the hundreds of ISPs I've talked to.