I presume you mean that when you move the hub from downstairs to upstairs you do not get a broadband connection. It could be that the upstairs socket is not live. Try tracing the wires from the upstairs socket to the VM omnibox on the outside of you house and see if the upstairs wire is connected.
Tudor
There are 10 types of people: those who understand binary and those who don't and F people out of 10 who do not understand hexadecimal c1a2a285948293859940d9a49385a2