@WiFi74 What sky hub are you using, and what does it show when powered up, you may also wish to switch it off for at least 5 minutes to fully power off before restarting it!
This link below provides information about the coloured lights on the various hubs that can help to see what is going on! If the system is also Full Fibre then the lights on the OR/CF ONT also require to be looked at!
https://www.sky.com/help/articles/hub-lights-explained-start
