<t> The Joiner does not get an error message from the application. It just suddenly closes.<br/>
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The Host application hangs for a little longer and then gets an error message. I will have to recreate it to get the message. After that it closes.<br/>
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Windows event viewer gives these ...

<t> My son and I are trying to set up a multiplayer game on our local network, but the game crashes on both sides after the Joiner clicks the "Join" button.<br/>
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Game: Close Combat Modern Tactics, latest release (as of August 8, 2021)<br/>
OS: Windows 10, latest release (as of August 8 ...