Windows error 7068 (ERROR_CTX_SECURITY_LAYER

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: ERROR_CTX_SECURITY_LAYER_ERROR the Terminal Server security layer detected an error in the protocol stream and has disconnected the client.

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ERROR_CTX_CDM_DISCONNECT	ERROR_TS_INCOMPATIBLE_SESSIONS

ERROR_CTX_SECURITY_LAYER_ERROR

ERROR_CTX_SECURITY_LAYER_ERROR means the RDS security layer detected an invalid or unexpected protocol stream and disconnected the client. Common causes include TLS/certificate problems, incompatible encryption settings, a damaged client stack, or an intermediary that breaks the RDP stream.

What to check

Compare the RDP client version and security settings with a client that succeeds against the same host.
Review the Session Host certificate, private key, and the effective RDS security/encryption policies.
Check whether a VPN, gateway, proxy, or inspection device is present only on the failing network path.

Test-NetConnection -ComputerName rd-session-host -Port 3389

Microsoft: Remote Desktop Services system error codes

Microsoft: Troubleshoot Remote Desktop disconnected errors

Microsoft: Remote Desktop Services policy settings

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