Router randomly reboots itself almost every night

Question

I've been with Sky for a few months now and this is becoming an increasing frustrating problem. Everything is fine until, somewhere between, I think 10pm-2am, the internet would slow down and after a 2-3 mins - grind to a halt, the connection drops (smiley face disappears from router) before it re-establishes a connection. This doesn't feel like an interference problem as the connection does not just drop - it gradually slows down before reseting itself. At first I thought this was just a firmware check/update but surely this cannot be happening almost every single night? I've called Sky to run some line checks and everything seems normal. I'm already at the master socket and done the usual checks. Now I'm starting to think that somewhere between my router (SR102) and Sky, there is some sort of scheduled 'link refresh' which makes the connection reset itself almost every single night. Anyone with a similar problem - any advice much appreciated.

Answer 1

Mine is the same but reset randomly (Disconnect and connect) about 20 + time a day. Rang Sky and done all test, I am thinking it was the Sky hub (Router) might have gone faulty but they not offer to replace it and want to do more check.
Mine once on smily face in Amber, it sometimes doesn't turn back to white which mean broadband is not connected at all. It has been 1 week now like this.