Thermal Issues With Home Internet Gateway/Router as a Cause of Dropped/Slow Internet or Wi-Fi Connection

If T-Mobile support engineers consistently requested specific information about the routers and recorded it so they could establish a thorough profile of the population of routers where customers are reporting behavior that appears to be heat related they might just identify a batch run of routers that have a specific related fault or a common out of spec component that results in the behavior. The need for a reboot seems more related to memory corruption or a buffer issue. If the issue "is" heat related I would be inclined to believe a cool down period would be required to improve behavior for any amount of time. The T-Mobile engineers need to gather the data, provide it to engineering, and focus on resolution not temporary workarounds that do not resolve the issue. With remote access to the routers the T-Mobile engineers should be able to gather data to build a clear profile of the routers involved.