We have diagnosed the problem. Malwarebytes "Web Protection" component is blocking our VPN. Ive contacted them and hopefully we will reach solution.
Temporal workaround: before you turn on our VPN, turn off "Web Protection" component in the "Real-Time Protection" box (in Malwarebytes application). After you disconnect the VPN you can turn "Web Protection" on again.
Just to be sure is there anyone with this problem that doesn't have Malwarebytes installed? If so do you have any other security product?
I tested it a couple of times, and the workaround works. It is fine for the time being.
Interesting that after more than 10 years of working fine together there is a conflict.
One other thing that I have noticed over the last week is that I cannot eject any external password protected
backup Western Digital drives. It used to be fine till about a week. Now, every time I back
up and try to disconnect I get the old "The disk in still in use ..." stuff. I do not think that
WD Security can do much to interfere with Avast and/or Malwarebytes, but it just a thing
to log as it is another new behaviour.
Needless to say, I have seen this millions of times before and I could never figure out
what Windows was talking about I suppose it is another one of those "Windows things".
I do like Malwarebytes as it has helped me through some ransomeware infections years ago when out daughter shipped in something. So, I will keep it a running process as its protection is more important to me than VPN.
Thanks. I hope all this gets figured out.