https://bugs.winehq.org/show_bug.cgi?id=49662
--- Comment #2 from Alex Henrie alexhenrie24@gmail.com --- It's not a port, it's an IPv6 address. Go to http://test-ipv6.com/ and make sure you have IPv6 connectivity. If you do not, you most likely just have an old router that does not have IPv6 enabled by default, and you can enable it in the router's settings.