Yes thanks, I know I need to say what the problem is. I just wanted to wait until there was someone who could send a replacement or an engineer at the end of it.
The 360 was installed by an engineer 2 years ago. It was a straight swap for a V6, using all the same cables, including the same ethernet cable. It worked for a few hours then crashed and showed snow on the screen. It then rebooted and worked for a shorter time before crashing again, and so on, with the crashes becoming more frequent.
The next day it worked for a few hours before the crashes came back, and now the ethernet had stopped working. So we tried it with the ethernet cable unplugged, but it made no difference to the crashes. Then we also connected it to the WiFi and the crashes stopped.
We contacted 150 and explained all this. They told us the box is defective and they would send a replacement. Then the next day they rang and said that they wanted to send an engineer instead. The first lockdown had just started and we now had an elderly person with us who was ill. So we said no thanks to the engineer, since the box seemed to be working fine on WiFi. We figured we could get it replaced in the future.
A few days later we found problem 2. Playback of recorded programmes freezes every few seconds, just for a moment. The same thing happens when watching live TV with a delay. But we figured we could live with it. We use catch up instead. I imagine this problem was always there, we just didn't come across it for the first few days.
Problem 3 crept in more recently. We used to have the 'Standby power consumption' setting set to 'Active start'. But this now causes the box to cold boot which takes a few minutes. We work around this by using 'Fast start'.
We have the 'Pair remote' setting paired to a Samsung TV and a Yamaha audio system. The 'Volume keys control' used to allow us to select which of the two was controlled by the remote's volume keys. Problem 4 is that this will not change any more, it is stuck on the Yamaha sound system.
For this last problem I thought I'd try a 'Factory reset' then pair up my devices again. However, problem 5 is that factory reset no longer resets these things, some things go back to their defaults and others stay as they were.