Hi, BT do not give Fixed IP addresses to domestic customer, only BT Business Broadband offer Fixed IP Addresses.
Just in case you were not aware of, or have not done this, you have a Dynamic IP address, so to enable Roon ARC to work you need to setup a DDNS (Dynamic DNS), there are several good free ones available (DynDNS, Dynu, FreeDNS, No-IP etc).
@ged_hickman1 Thank for the response.
My Core IP address is fixed.
Are you saying I need to turn off the router extended security and remove IPv6, then set-up manually?
BT and Plusnet are like the family we don’t speak about. Essentially the same company but with different marketing so a BT router shouldn’t be a problem.
If it is not true, what is? Fact is that BT only provide a dynamic IP address with all their domestic broadband services. If you don’t implement DDNS how does your external Roon ARC find you when the external IP address changes? My BT external IP address changed 3 times in two days when setting Roon ARC. Sure it will work for a while setting up with your current IP address, but when it changes, how will it work then? That is exactly what DDNS is for and why it exists.
I did not say you need a fixed IP address, yes you need the routing rule to allow the traffic through, but for those with ISPs that provide a Dynamic IP address, how does the external client find your router when the external IP address changes without DDNS?