Hello!

Open Radmin VPN - Help - View Log - File - Save As..-Save and send this file to us.

Please, perform the following:

Start-> run -> msinfo32

Open this 'msinfo32' as administrator.

Export the file as .txt and attach to your next letter.

We will search the file and try to find what might have caused the issue.

How to do this: https://www.youtube.com/watch?v=wwavLFt0PKc

If you can not save this file "msinfo32" , please indicate your processor .

this is files

In the Device Manager, then Network Adapters, do you see "Famatech Radmin VPN adapter" and if yes, can you click on it, choose Properties, first tab General, below, Device Status, which code do you see?