Update:
Engineer came yesterday checked everything like cables, hub 4 said all was ok and was working fine and when he left speed was normal.
Well last nite again de low speeds 60megs, and today again having to restart few times, but the problem persists.
Virgin should just come clean and say what is the issue with their network, we are paying for 1gig service and not getting nowhere near the speeds we are suppose to get.
If the cables, hub 4 all is ok where is the issue? It can only be on Virgins side then.