[Bug 51401] New: 6.12-1 can't make server connections anymore

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51401

Bug ID: 51401
           Summary: 6.12-1 can't make server connections anymore
           Product: Wine-staging
           Version: 6.12
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail], [e-mail]
      Distribution: ---

Created attachment 70257
  --> https://bugs.winehq.org/attachment.cgi?id=70257
working tcp connection

Game: Runes of Magic

with 6.12-1  the client can't connect it's version server any more.
downgrade to 6.11-5 solved the issue instantly.

Steps to Reproduce:

update to 6-12
tcpdump -X -n -n host 194.187.19.180
(runewakers updateserver)

start the game

You see the connection, you see some tcp data, but your do not see ANY sign of
a HTTP protocol and unencrypted port 80 connection should contain.

Conclusion: the connection fails on TCP/IP level before HTTP gets involved.