RDCMan v. 2.93 disconnect after minutes in W11(26100.3194)

Question

After recently upgrade (2025-02) RDCMan last version (2.93) disconnects randomly sessions in minutes.

Socket close error. Never seen in RDCMan...

MSTSC does not.

Any solution?

Regards,
Graziano.

Answer 1

Hello,

I’ve come across a few users who are encountering the same issue you’re facing. It seems to be a bug, an I suggest sharing the issue on the Microsoft Feedback Hub. This platform allows users to report problems, suggest improvements, and provide feedback directly to Microsoft.

You can access the Feedback Hub here:

Send feedback to Microsoft with the Feedback Hub app - Microsoft Support

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If the Answer is helpful, please click "Accept Answer" and upvote it.

Answer 2

The problem is due to UDP protocol used by Windows 11 last 2025 update. It seems that UDP was preferred to TCP in RDP connection and this causes the problem especially with old Windows Server 2012 R2.

Different RD Programs have the option to avoid UDP connection but RDCMan not.

This causes windows to connect by UDP and the problem appears.

The workarond is to set via GP or via registry the server or the client to force TCP.

The hope is that also RDCMan could add the "force TCP connection" in its options.

Regards,
Graziano.