1. Overview of the Error Error Code: 0x3 (Sometimes displayed as 0x3 0x7 or 0x7 in extended logs) Error Message: "An internal error has occurred" or "Remote Desktop Connection cannot verify the identity of the remote computer"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Terminal Server Client] "AuthenticationLevelOverride"=dword:00000000 "UseSSL"=dword:00000001 On the , enforce TLS 1.0 (last resort): rdp error 0x3 0x7
| Windows Version | Minimum update to avoid error | |----------------|-------------------------------| | Windows 10/11 | KB4056892 or later | | Windows Server 2016 | KB4093120 | | Windows Server 2019/2022 | April 2018 cumulative update | rdp error 0x3 0x7
# Enable TLS 1.2 (run as admin) New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -Force New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -Name 'Enabled' -Value 1 -PropertyType DWord New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -Name 'DisabledByDefault' -Value 0 -PropertyType DWord Reboot after changes. Error 0x7 often appears after one side is updated and the other is not. rdp error 0x3 0x7