Sure, here are some solutions you can try to fix the "An Internal Error Has Occurred" RDP error:
1. **Check the Remote Desktop Services service:** The Remote Desktop Services service is responsible for running RDP on Windows servers. Make sure that the service is running and enabled. You can check the status of the service by opening the Services snap-in (services.msc).
2. **Check the firewall rules:** Make sure that the firewall rules allow RDP connections to the servers. You can check the firewall rules by opening the Windows Firewall with Advanced Security snap-in (wf.msc).
3. **Disable Network Level Authentication:** Network Level Authentication (NLA) is a security feature that can sometimes cause problems with RDP connections. Try disabling NLA by following these steps:
1. Open the Group Policy Editor (gpedit.msc).
2. Navigate to the following policy setting:
**Computer Configuration\Windows Settings\Security Settings\Remote Access\Remote Desktop Services\Security\Allow Users to Connect Only from Computers Running Remote Desktop with Network Level Authentication (Recommended)**
3. Set the policy to "Disabled".
4. **Reset the Remote Desktop Protocol service:** You can reset the Remote Desktop Protocol service by following these steps:
1. Open a command prompt as an administrator.
2. Type the following command and press Enter:
**netsh winsock reset**
3. Restart the computer.
5. **Reinstall the Remote Desktop Protocol client:** You can reinstall the Remote Desktop Protocol client by following these steps:
1. Open Control Panel.
2. Click on "Programs and Features".
3. Click on "Turn Windows features on or off".
4. Scroll down and check the box next to "Remote Desktop".
5. Click on "OK".
6. Restart the computer.
If you have tried all of these solutions and you are still getting the "An Internal Error Has Occurred" RDP error, then you may need to contact Microsoft support for further assistance.
Thanks.
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