New router not being picked up by devices at all. However old router is still visible.

[MeesaKim]

I sent my old broken router back and received the new hub. Installed and turned on but no devices find the WiFi name at all even after pressing WPS for the TV. However some devices have automatically reconnected to the broadband but it shows as connected to the old hub. If I press forget network it will not show me the new hub only the old hub that has been sent back. This is frustrating as still can't connect the devices and now having no connection to the upstairs bedrooms. I have had nothing but issues since I joined. 

[Chrisee]

@MeesaKim if you have Sky Q boxes they will show the old SSID until,they are properly connected to the new hub see https://www.sky.com/help/articles/setting-up-sky-q-do-you-have-a-sky-hub