Press Windowsthe key, type control panel in the search box, and then click Open from the list of options.
Control Panel Start Menu - ERROR_VC_DISCONNECTED
Select a category to view by , then click System and Security .
Click Windows Defender Firewall .
Windows Defender Firewall
In the left pane, click Advanced settings to open the Windows Defender Firewall with Advanced Security window .
Advanced settings
Click "Inbound Rules" on the left panel.
Find the "Remote Desktop TCP-In" rule in the middle pane and make sure it allows RDP traffic on port 3389 .
Select it and check if it is disabled. If yes, click Enable Rule on the right panel.
Enable the ERROR_VC_DISCONNECTED rule
If you don't see the rule, click New Rule in the Actions section .
New rule
Select Port , then click Next .
Port =- ERROR_VC_DISCONNECTED
Select TCP and enter 3389 as the cyprus telegram data port number, then click Next .
TKP
Select Allow the connection and click Next .
Allow connection
Select the profiles Domain , Private and Public according to your network configuration, then click Next .
Profile
Give the rule a name and click Finish .