What does Windows error code 7055 (ERROR_CTX_LICENSE_CLIENT_INVALID) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The RDS client is not licensed to connect to the target Session Host.

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ERROR_CTX_LICENSE_NOT_AVAILABLE	ERROR_CTX_LICENSE_EXPIRED

ERROR_CTX_LICENSE_CLIENT_INVALID

ERROR_CTX_LICENSE_CLIENT_INVALID means the RDS licensing path rejected the client as ineligible for the configured deployment. This can arise from a CAL type mismatch, an unavailable licensing server, or an invalid licensing state on the client or server.

What to check

Confirm the deployment licensing mode and the type of RDS CALs installed on the license server.
Verify that the Session Host can reach the configured license server and is receiving the intended policy.
Compare an affected client with a successful client before changing licensing configuration globally.

Get-RDLicenseConfiguration -ConnectionBroker rdcb.contoso.com

Microsoft: Remote Desktop Services system error codes

Microsoft: RDS Licensing troubleshooting guidance

Microsoft: No RD Licensing server available

Microsoft: Get-RDLicenseConfiguration

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