Troubleshoot Client-Based Zero Trust Access

Pre-Enrollment Errors

ErrorDescriptionCondition
Cannot begin enrollmentCannot begin enrollment. Contact your IT help desk about these errors.Occurs when there is a KDF, DHA, or TPM error or some combination.
Device registration errorAn issue with the Device Desktop occurred. Contact your IT help desk.Occurs when Duo desktop is not installed, is not running, or is non-responsive. The user is asked to ensure that the app is running or contact IT help desk for assistance.
Server certification errorError initiating enrollmentClient is unable to verify the proxy server certificate.
Cannot connect to DHAOccurs when the client is unable to communicate with the Device Health application because DHA is not installed.

Enrollment Errors

ErrorDescriptionCondition
Certification enrollment errorOccurs when the certificate does not install in the background during enrollment. The certificate is required for Zero Trust Access to work properly.
No network connectionOccurs when the user doesn’t have an active or working internet connection (wired or wireless).
User auth error during enrollmentError initiating enrollment. Contact your IT help desk.Occurs when the user has provided an invalid email address or password (or both). The system is unable to verify the user's credentials.

Post-Enrollment Errors

ErrorDescriptionCondition
Network not allowedYour organization requires you to be on an authorized network to log in.Occurs when a private resource is not configured to allow Zero Trust access. Also occurs when the destination is not a configured private resource, but rather is an IP address that was typed directly into an access rule.
User IP address blockYour organization requires you to be on an authorized network to log in.Occurs when the system is configured to allow access only from specific IP addresses, and the user is trying to access private resources from an unapproved IP address.
Application blocked for everyoneLocation not allowed. Your organization requires you to use a different operating system. Contact your IT help desk.Occurs when the user did not match any rule and was blocked by default or when a rule was not created to allow access to the application.
User blocked implicitlyLocation not allowed. Your organization requires you to use a different operating system. Contact your IT help desk.Occurs when the user did not match any rule and was blocked by default or when a rule was not created to allow the user access to the application either directly or via a group.
Time-based application blockYou do not have permission to access this application at this time. Contact your IT help desk.Occurs when the user does not match any rule and was blocked by default or the application does not allow access at this time.
User IP blockLocation not allowed. Your organization requires you to use a different operating system. Contact your IT help desk.Occurs when the user is using an unauthorized device to access; the user’s credentials aren’t associated with the IP or with that device.
User blocked explicitlyLocation not allowed. Your organization requires you to use a different operating system. Contact your IT help desk.Occurs when the user is blocked by a rule that denies access or when the user does not have permission to connect or access the resource.
Access protocol blockLocation not allowed. Your organization requires you to use a different operating system. Contact your IT help desk.User does not have permission to connect to the resource using the current protocol.
User location blockLocation is not allowed.Occurs when the user did not match any rule and is blocked by default or when the user is not allowed access to the application from their current location.
Cannot connect to DHAOccurs when there is no response when the client tried to communicate with DHA.

Requests to Reauthenticate

If an end user is offline for an extended time, for example on vacation, Secure Access may prompt the user to reauthenticate in order to restore access to private resources. This is normal and expected.

Requirements for Secure Client with Zero Trust Access <Troubleshoot Client-Based Zero Trust Access Errors > Manage Virtual Private Networks on Cisco Secure Client