| Error Code | Hexadecimal | Typical Message | Layer | |------------|-------------|----------------|-------| | 0x7 | 0x7 | ERROR_OUTOFMEMORY or Not enough storage | System / Memory | | 0x904 | 0x904 | SSL_ERR_PROTOCOL_VERSION / RDP licensing failure | RDP / TLS |
Open Command Prompt as Administrator and run: restart-service termserv -force (or restart the "Remote Desktop Services" service in services.msc ). remote desktop 0x904 0x7
Specifically, this error often arises when a client attempts to connect to an RD Session Host that is either not configured with a licensing server, has expired licenses, or is in the "grace period" but failing to report the status correctly. The underlying mechanism involves the server attempting to handshake with a licensing server to issue a Client Access License (CAL). When the client receives a refusal or a malformed response—often due to Group Policy Object (GPO) conflicts or DNS misconfigurations preventing the location of the license server—the connection is terminated, yielding the 0x904 status. It represents a failure not of the network path, but of the administrative "permission slip" required to utilize that path. | Error Code | Hexadecimal | Typical Message
To resolve the 0x904 0x7 error, follow these step-by-step troubleshooting guides: When the client receives a refusal or a
Log into the host machine locally or via an alternative method.