1. Visionapp Network Level Authentication Login
2. Visionapp Remote Desktop Requires Network Level Authentication

I've never used RDCMan from Microsoft and I forgot ActiveX was still a thing;-) I enabled the 'Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)' option and that resolved the issue for me. Thanks for the quick reply. Visionapp Remote Desktop 2009 (vRD 2009) is a powerful tool for managing and accessing multiple servers and desktops. VRD 2009 features unparalleled ease of use, accelerated remote desktop access to servers and workstations, detailed logging features, and a new interface that allows administrators to view all connected machines simultaneously. Next, go to the remote tab and uncheck the checkbox for the “Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)” option. Now click the Apply button to save the changes made and exit System Properties and then try logging into the remote computer again and see if the problem is fixed.

While working on domain-controlled systems, upon trying to remotely access computers, users have reported the following error:

“The remote computer that you are trying to connect to requires network level authentication (NLA), but your windows domain controller cannot be contacted to perform NLA. If you are an administrator on the remote computer, you can disable NLA by using the options on the remote tab of the System Properties dialog box.”

Visionapp Network Level Authentication Login

Cause

The crux of the error suggests that the domain controller cannot be contacted, thus network level authentication cannot be performed. The error has been reported even when Network Level Authentication was enabled.

Our strategy towards dealing with the issue would be to totally disable Network Level Authentication. While the NLA provides extra security, we perhaps have no choice here.

Solution 1] – Delete Default.rdp file

1. Go to My documents and if you find a file named Default.rdp , just delete it. Try again.

If it does not work , Remove the machine from the domain then add it again. Now, check if the problem persists.

Visionapp Remote Desktop Requires Network Level Authentication

Solution 2] Disable NLA using Properties

1] Press Win + R to open the Run window and type the command sysdm.cpl. Press Enter to open the System Properties window.

2] In the Remote tab, uncheck the option for “Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended).”

3] Click on Apply and then OK to save the settings.

Solution 3] Disable NLA using Registry

If the above method does not work, we can disable NLA from the Registry itself.

1] Press Win + R to open the Run window and type the command regedit. Press Enter to open the Registry Editor.

2] Select File and then click on Connect Network Registry.

Connect to the network Device by entering details.Wait till the network connects.

3] Navigate to the following path:

• HKLM
• SYSTEM
• CurrentControlSet
• Control
• Terminal Server
• WinStations
• RDP-Tcp

4] Change the values of the entries SecurityLayer and UserAuthentication to 0.

5] Close the Registry Editor.

6] Restart the system.

Solution 4] Disable NLA using Powershell

/download-mac-os-10116-dmg.html. 1] Press Win + R to open the Run window and type the command PowerShell. Press Enter to open the Powershell window.

2] Copy-paste the following command in Powershell:

Hit Enter and then enter command below.

3] Press Enter to execute the command and restart the system once done.

Hope it helps!