Starlink (ISP) with ARC: CG-NAT Requires VPN Workaround (See Staff Post)

Hi everyone,

In case you hadn’t seen this post, we’re testing IPv6 compatibility in #earlyaccess: HELP MAKE ARC WORK FOR MORE USERS: Call for Volunteers with These Internet Service Providers to Join #EarlyAccess

If you believe your Starlink account has a static IPv6 external address assigned, you can download the Early Access builds here to try IPv6 compatibility:

However, before proceeding, please note that:

a) not all Starlink accounts will have a static IPv6 external address, as some still rely on dynamic IPv4 with CG-NAT
b) if you do have a static IPv6 external address on your Starlink account, then you will need a third-party router, as the Starlink-issued router reportedly does not support the firewall customization necessary for ARC to function with IPv6.

Please see here: Does Starlink Have Port Forwarding? - Starlink Hardware.

In many cases, if auto-configuration of ARC fails, you will need to add a firewall exception for the port listed in Roon → Settings → ARC in your router’s web administration page. In most routers, this will be under IPv6 or firewall settings.