Post #4011983

It must be DNS. There's no way it's not DNS. It's Router Advertisement. It must be RA. There's no way it's not RA It's the firewall. It must be the firewall. There's no way it's not the firewall. It's MTU. Spent two days troubleshooting this silly issue: https://serverfault.com/questions/1199535/lan-server-is-unreachable-via-ipv6-mtu-1500-capped-to-1492-but-ipv4-works-o/1199536