https://bugs.winehq.org/show_bug.cgi?id=49485
--- Comment #5 from Robert Griggs rtgriggs@gmail.com --- Other users are having the same issue. This is possibly the indicator of where the problem is in the log files:
winsock:WS_setsockopt SO_SNDBUF ignoring request to disable send buffering
The other people with the same problem on Sierracharts support board:
https://www.sierrachart.com/SupportBoard.php?ThreadID=47810