That is not good, I think I have it good compared to you., Zzoomm had a problem over the weekend according to some people, when I got back home on Sunday it was fine and on Saturday it was ok.
i think a lot of the problem with Zzoomm is the awful router, they really need to get a decent one, this is why people are complaining. One person on Facebook saying they had a higher upload than download, 6MB/s down and 1675Mb/s up.
Not good for people who pay the money for the higher speed. I hope these are just teething problems with the new network and will get better. I have had much worse over the years and paid a lot more money. I am not changing to Openreach fibre, I can't be bothered to go through that again., I rather go back to FTTC, I don't think my landlord would like another hole drilled in the wall and another splice box installed.
If it seems your problem is lack of communication, sadly I know a lot of about lack of communication, I live with it at work, and it can cause all sort of problems. I hope you get it all working correctly
Adrian
Desktop machines Mac mini pro with macOS Ventura, also pc Ryzen powered with windows something or other.
Zooming with Zzoomm FTTP,