Extended error code 0x7 can occasionally reference a refusal due to resource limits. If you are using the Remote Desktop Services (RDS) role rather than a standard desktop OS:
Restart Remote Desktop Services via Command Prompt (Admin) by running: restart-service termserv -force Extended error code 0x7 can occasionally reference a
Note: If you cannot access the GUI, you can run this command in an elevated PowerShell prompt on the remote machine to achieve the same result: They restart the termserv service, and like magic,
: If your connection has high packet loss or insufficient bandwidth, the RDP protocol times out before it can finish the "security handshake". Certificate Corruption They restart the termserv service
: They log in locally and delete the old, expired certificate from the Remote Desktop store. They restart the termserv service, and like magic, Windows generates a fresh certificate, and the connection is restored.
If the error is caused by a DNS or Windows 11 resolution bug, bypass it by connecting directly to the IP.