EE120 Booster not working with new SR203 router

[Rob256]

I have just upgraded my sky broadband to a new superfast broadband package, and successfully installed the newly provided SR203 router. However, our EE120 Sky booster that had always worked with our old Sky router will not connect to the new one, despite going through the usual routine to do so (by pressing each device's WPS button for several seconds). 

Does the new SR203 router require a new booster, or should it be compatible with our EE120 booster?