SoftEther VPN User Forum

I tried a lot of openVPN configurations and on adding them and attempting to connect, it shows: "The username and password were not accepted by the remote VPN server."
I am on mac os, and using tunnelblick, just 12 hours earlier it was working fine. Anything that I am missing? Any resolutions?

I've used openvpn for years on Linux. I recently tried to set it up on a relative's windows 10 PC. I downloaded it and installed it, staged the config files and certs, and started the vpn. A console came up, showing the connection coming up, until the final line, where it crashed and burned, saying that windows couldn't find the tap device.