shogunx,
I too had problems getting the Surfshark IKEv2 VPN to work. I had to apply the development firmware v6.48beta40 to fix the “drop every 5-10 seconds” problem due to the surfshark DNS addresses only having 5sec TTL. Making my own static DNS entry worked, but might have broken if that particular server no longer accepted connections.
Future generations can read more here →
http://forum.mikrotik.com/t/ikev2-sa-killed-after-5-seconds-due-to-short-dns-ttl-surfshark/142543/29
I don’t seem to have any MTU problems, so I put it back to 1500 and removed the mangle/clamp-to-pmtu workarounds shown here. Still working so far…
Thanks for your help, both in this thread and in the other!