@Tomsheringham
Yes. However there's a difference between the number of devices which a router can support (which is set by hardwar/software) and whether the total bandwidth arriving at the address is enough to supply each device with what it needs.
Current Sky routers (Broadband Hub, Max Hub and Gigafast+ Hub) are intended to handle a typical household of client devices. Earlier models may be limited, but shouldn't still be in use anyway.
* * * * * * *
Sky Glass 55" (on ethernet) & two Stream Pucks (one ethernet / one WiFi)
BT Halo 3+ Ultrafast FTTP (500Mbs), BT Smart Hub 2
