xazbrat wroteUnfortunately I don't have fiber, but I have had issues with the regular dsl. What seems to help was changing the DNS from whatever they had to either cloudfares or Google's or a combination. I went with 1.1.1.1 and 8.8.4.4 as my dns addresses and it seemed to improve it.
I tried it but it didnt work.
I am really baffled. I live 5 minutes away from the office and the fiber at home has no issue at all (I hope i didnt jynx it )