WiFi signal is week poor upstairs

[Imran27]

The WiFi signal upstairs is weak. I have to move into the hallway to get a signal. The router is in the same place as my old virgin media router was, never had an issue with receiving a single upstairs.  I have re-start the router, turned off all devices connected to it and I am having the same issue. Any idea on what to do. 

[JimM1]

@Imran27 What hub do you have from sky?

[Imran27]

Is a black box

[JimM1]

@Imran27 There are NO two hubs alike, and also do not know if you are still connected to a master socket line or on a FF (Full Fibre) connection, if on copper master socket, then DO NOT keep switching the hub off/on you are NOT helping the matter.

As you believe the signal is weaker from the sky hub, all you can do is get a wireless booster to improve the upstairs signal. Link below have a look and say what hub you have.

https://www.sky.com/help/articles/set-up-hub-which-sky-hub-do-you-have