Sky mini constantly losing connection to either the network, sky q box or both

[KC84]

Hi

over the last few months I am having loads of issues with the mini box either losing connection to the main box or with the network. There's nothing wrong with the network I've got 100gb full fibre can't fault it. The main box works fine. I have had this mini box for years so why is it only a problem now?

I have tried all suggestions reboot, update, hard wire the main box etc nothing works. I'm refusing to hard wire the mini as it shouldn't need it and has never needed it before. Has anyone else had the same issue? I'm thinking maybe it's the box 🤷‍♀️ has anyone been sent a replacement that worked? Thanks