@David-TP thanks so much for the links. I feel a bit more confident in ordering my new broadband service and being able to continue to use my deco's & will save me quite a bit of money by changing...

I am changing my network provider from virgin to ZEN who provide a Fritzbox 7530 as router. My existing setup is with virgin, with their supplied router in modem mode and my decp x20 as the router...