An authentication error can describe several different conditions. It may be caused by session state, a verification mismatch, a policy restriction, or an account-specific problem.
Close all related tabs and retry from a clean private window. This removes many local cookie conflicts.
Secure authentication may rely on accurate device time. Enable automatic time synchronization where allowed.
Only respond to prompts inside the verified official service. Never share a security code with an unsolicited caller or message sender.
Network changes can interrupt a secure authentication sequence. Follow company policy before disabling or changing any managed connection.
Locked access, credential changes, and entitlement issues require official support or an authorized administrator.