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One of my 5 available Mullvad Wireguard Configurations is used solely for DNS. The DNS Configuration on my Router forwards requests in sequence, not parallel. I want to use this Mullvad Device for 4 connections to 4 different Mullvad Servers in a Failover Configuration. If one Mullvad Server i unreachable (checked with ping), another one becomes the primary route for DNS.
I have made it work at first! But after a few hours the Wireguard Connections goes down. I suppose this is part of Mullvads Automation securing users to only use 5 devices. My assumption is that even though DNS Requests are sequential and therefor always count as one device querying different servers, my failover configuration with ICMP Ping Requests can be and often is parallel. That probably gets those connections terminated.
My question is if anyone has tried anything like that? Or any other solution to my primary goal of having DNS Failover within VPN? I appreciate if a swedish mullvad would chip in here.