Go to Services and find Remote Access Auto Connection Manager and Remote Access Connection Manager Services and start them manually. Reboot the PC and try connecting again. Uninstall the existing NetExtender Client, delete the C:Program Files (x86)SonicWall folder and its contents, and Update the WAN Miniport Drivers.
Full Answer
Where is the SonicWall adapter in the device manager?
But there is only one Sonicwall adapter present in the device manager. Go to Windows Service manager under ControlPanel > Administrator Tools > Services. Look for the Remote Access Auto Connection Manager and Remote Access Connection Manager to see if those two services have been started.
How to test the SonicWall firewall firewall?
You can test by pinging 8.8.8.8 while connected to the VPN. We definitely need some real-time troubleshooting in this case while we have access to the SonicWall firewall UI along with one remote user for testing.
Where can I download SonicWall Mobile Connect?
You can download SonicWall Mobile Connect from the Windows Store. It is a Windows 10 application. Hope this helps! Fyi, I am using Sonicwall Mobile connect in my laptop until now no issue.
How to regenerate SSL certificate in SonicWall?
Regenerate or create new certificate used for SSL VPN, so that the encryption used is SHA256 with 2048 bits for the public key of the certificate. If using self-signed certificate: Navigate to Manage | Appliance | Base Settings. Click on Regenerate Certificate. Reboot the SonicWall. Connect again. It should be successful now.
Description
When connecting to an appliance using an SSLVPN tunnel, through Net Extender on a Windows Machine you receive the following error:
Cause
This issue seems to occur when the WAN Miniport (IP and PPTP) network devices are deleted, corrupted, or otherwise broken on the End Device.
Resolution
Make Sure the PC has an Internet connection and Windows Server is up to date. Update the PC in case of any pending updates.