Situation: The client has Palo Alto firewall as VPN. One of users has a problem to login with this error: GlobalProtect portal user authentication failed. Login from: 76.X.X.X, Source region: US, User name: user218, Client OS version: Apple Mac OS X 10.15.1, Reason: Authentication failed: Invalid username or password, Auth type: profile.
Troubleshooting: GloablProtect username is case sense. The correct username is User218 instead of user218. Use User218 works!
