I tried to install the Sophos SSL VPN Client 2.1 from the UTM user portal. I am getting an error "An Error occurred installing the Sophos SSL VPN adapter driver"
So,
I tried so many things and finally it is working for me.
You can also try it.
1. Install CrSSL_v1.3.1.30 SHA1.exe VPN client.
2. Then install Sophos SSL VPN Client 2.1.exe client.
3. Now you can see that the VPN is connected properly.
Now uninstall CrSSL_v1.3.1.30 SHA1.exe VPN client and install Sophos SSL VPN Client 2.1.exe again.
After installation once again you will see Sophos SSL VPN Client 2.1.exe is working.
Some other useful link to try
community.sophos.com/.../ssl-client-2-1-vpn-adapter-install-error
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