Roon Arc Port Forwarding and Remote Connection Issues

[Suedkiez (Just a fellow user like you)]

The MultipleNatFound in the error message is the issue, see this post for instance.

As you seem to have only one router, the problem is most likely your ISP running on IPv6.

However, Roon is currently working on / testing a solution for users with ISP that only have IPv6. If you feel comfortable, you can try this and hopefully get it working:

HELP MAKE ARC WORK FOR MORE USERS: Call for Volunteers with These Internet Service Providers to Join #EarlyAccess

Hi Everyone, A portion of the user population has been locked out of using ARC because their internet service provider uses IPv6-format addresses. For the past several months we’ve been working on enabling IPv6 support within Roon which will open up the possibility of using ARC for a large number of these users. We have enabled our initial implementation of IPv6 compatibility for users in Early Access. This change should have zero impact on your day-to-day usage of Roon and will require no mod…