I have just changed to Now BB and have been given a new Now BB hub 2. It is fine if I am in the same room as the router but if I got to the floor above or the room next door the Wifi signal is dreadful and provides 3-4Mb ( normally 28-32Mb). If I got to the top floor I get no wifi signal at all. My previous router from talktalk worked well with a powerful signal throughout the whole house. What can you do to sort this?????