This site is being deprecated.
Please see the official X‑Plane Support page for help.
As Guillaume notes, please make sure to complete and send the automatic crash report if it comes up. If you can consistently reproduce this issue please file a bug here. Include the log.txt from all computers and the exact steps you take to set up your network arrangement and then to cause the crash.
More guidelines on how to file a helpful bug report here.
This site is no longer being actively maintained.