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Title
Error connecting to RDP session, "The remote computer disconnected the session because of an error in the licensing protocol." -
Description
Error connecting to a specific target system through RDP session, "The remote computer disconnected the session because of an error in the licensing protocol." Other RDP sessions are successful. -
Cause
This is a Microsoft limitation. For details please see [MS-RDPELE] Appendix 2.https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpele/1040af38-c733-4fb3-acd1-8db8cc979eda"<2> Section 2.2.2.1: Windows uses 2048-bit keys. Any client/server combinations that include Windows Server 2003 and Windows XP use 512-bit keys; for example, Windows XP as a client and Windows Server 2012 as a server, or Windows 8 as a client and Windows Server 2003 as a server." -
Resolution
Please generate a new 2048 bit certificate for use with this target system, and this should allow the connection to be established successfully.