We have a Bigpipe connection that has been rock solid, but I am intending on changing the router (similar model, just fits our physical setup better).

Can I swop out without issues - and swop back if required (I have some config to do which might not go smoothly).

A long time ago (pre fibre) connections I have used were tied to mac address, so swopping router involved spoofing mac address or some other config gotchas. Is there anything like this, or anything else that might trip me up? Ideally I want to be able to plug the old router back in and be up and running if I have any issues.

Thanks!