Changed broadband and now Multiroom not working

[Vrdh1]

I've changed broadband and connected my main sky box to it but my Multiroom isn't working. How do I correct this? 

[bob1234]

@Vrdh1 Try this link to see how to set up your mini boxes, as you will have a different router you need to set it up again.
https://www.sky.com/help/diagnostics/setting-up-sky-q/connect-your-sky-q-mini