Author here. You are totally right, this whole thing was a self-confessed shoe-string hack job so it was far from ideal in any respect. I was pleased how long i

Author here. You are totally right, this whole thing was a self-confessed shoe-string hack job so it was far from ideal in any respect. I was pleased how long it lasted though and performed. Regarding temps, the modem itself, I seem to remember, never reported a temp higher than 55 degrees C. I don't live in a very warm place though...