ARC Port forwarding issue (ASUS router)

[Axel_Lesch]

A statement from Roon on the subject:

Vodafone Germany and Fritz Box 6690 Cable: 502 Error in Port Forwarding Diagnostics

Hi @Felix_Witte and other affected users in this thread. Thank you for bringing this issue to our attention. By all indications, Vodafone Germany has implemented blanket IPv6 with DS-lite on residential accounts. Please see the master thread here: Vodafone Germany: No port forwarding for home accounts. DS Lite Tunnelled IPv4 address that doesn't do port forwarding. [NOT Resolved for Most Users; See Posts. Roon Investigating]. The team is actively investigating a workaround and we’ll continue t…