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

There may be a heat related issue with "some" of the routers. I have had mine since early January 2020 and I really cannot say with any certainty that it has had any heat related problem. I do believe there may be some of the routers that are from a given manufacturing run that for some reason are more prone to over heating. It could be some component(s) out spec. These probably should have had some sort of fan included in the unit but I see no evidence of one. There are two fair sized heat sinks but still that might not be sufficient. I put a small fan under mine a week or so ago but I can't say it makes any difference. I am more inclined to believe the majority of the disruptions I have had are related to maintenance work on the tower where the 5G signal is broadcasted. From all indications the primary signal comes from the tower north of here and the 4G LTE signal comes from another tower off to the NW at 270 degrees. When the 5G, secondary signal, falls and the router has to use the 4G LTE alone the router always experiences a period of disruption. These stationary routers should not be treated as phones are with respect to signal delivery it seems. They don't appear to handle channel transitions very well. When both the 4G LTE and 5G signals are present it works pretty well. The 4G LTE delivery is just meh… to blah