OpenVPN Support Forum

Please send how to clear user authentication fail from open vpn

Few Steps to fix authentication failed on VPN?
1. Check your antivirus and firewall
2. Disable your firewall
3. Check your login credentials
4. Make sure that you’re not exceeding the number of connections
5. Make sure that your service is paid for
6. Change your username and password
7. Reinstall your VPN client
8. Perform a Clean boot
9. Try switching to a different VPN client

The most obvious solution to this problem is by ensuring whether correct User-ID and password combination is used.
And the second thing is to check whether connection is working without VPN; this can be done by pinging a web address without VPN.
If both these methods are working then rest assured everything is fine.

Regards.