[Bug 50483] New: Starcraft Remastered: Unable to connect to Battle.net servers or create LAN game

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50483

Bug ID: 50483
           Summary: Starcraft Remastered: Unable to connect to Battle.net
                    servers or create LAN game
           Product: Wine-staging
           Version: 5.19
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail], [e-mail]
      Distribution: ---

With wine-staging versions >5.18 (higher than 5.18) I am no longer able to
connect to Battle.net servers eaither at all (just hangs on "Connectiong...";
screenshot attached) or randomly to some specific server (most often Europe
doesn't work, but sometimes others as well), no error being given.

Sometimes connecting to Battle.net servers passes (mostly if I first go to
create a LAN game, then return from that menu to selecting between Battle.net
and LAN menu), but I am not able to create a game (error: "Failed to advertise
the game. Connection lost while trying to advertise the game. (Error 5:9)";
screenshot attached) nor join any of the games (error: "Unable to join game";
screenshot attached).

Creating a LAN game doesn't work either, it just hangs on "Creating game..."
(screenshot attached).

All of this works properly with wine-staging 5.18. The versions >5.18 that I
tested - 5.19, 5.20, 5.21, 6.0-rc1 - all of them have the same problematic
behavior, so I guess it must be something 5.18 > 5.19.

I can confirm that this is not the issue with Battle.net availability or
IP/account being temp blocked or anything similar, as everything works properly
with 5.18 (also with wine-staging 5.7) and when using the same Battle.net
account and connecting from the same IP/network using a Windows machine.

I have also seen other users reporting the same issue elsewhere on the
Internet, so this is not an isolated case/issue with my machine/setup, e.g.
https://lutris.net/games/starcraft-remastered/

Let me know if any additional details are needed. I was checking the logs and
console output, but I'm not sure any of it would be helpful.

System:
OS: Linux Mint 20 Ulyana
Kernel: 5.4.0-60-generic x86_64
Working wine-staging versions: 5.18, 5.7
Non-working wine-staging versions: 5.19, 5.20, 5.21, 6.0-rc3

Screenshots:
<a href="https://ibb.co/r57nHTZ"><img
src="https://i.ibb.co/r57nHTZ/2020-01-11-SCR-01-LAN-hang-create-game.png"
alt="2020-01-11-SCR-01-LAN-hang-create-game" border="0"></a> <a
href="https://ibb.co/g6BHLZ9"><img
src="https://i.ibb.co/g6BHLZ9/2020-01-11-SCR-02-Battlenet-hang-create-game.png"
alt="2020-01-11-SCR-02-Battlenet-hang-create-game" border="0"></a> <a
href="https://ibb.co/8sxV0Cy"><img
src="https://i.ibb.co/8sxV0Cy/2020-01-11-SCR-03-Battlenet-error-create-game.png"
alt="2020-01-11-SCR-03-Battlenet-error-create-game" border="0"></a> <a
href="https://ibb.co/BBk2Yq8"><img
src="https://i.ibb.co/BBk2Yq8/2020-01-11-SCR-04-Battlenet-error-join-game.png"
alt="2020-01-11-SCR-04-Battlenet-error-join-game" border="0"></a> <a
href="https://ibb.co/L5FcnzC"><img
src="https://i.ibb.co/L5FcnzC/2020-01-11-SCR-05-Battlenet-hang-connecting.png"
alt="2020-01-11-SCR-05-Battlenet-hang-connecting" border="0"></a>