Error Messages

The following table describes the error messages that may appear in Tenable One OT Exposure.

Category	Error Category Name	Error Description	User Interface Message	Recommended Action
Active Query Management	NoRoutesForClient	A query received a routing error from the network.	Query failed due to a network connectivity issue. Please check your network connectivity and retry the query.	Check your network connectivity and retry the active query.
Active Query Management	InternalError	An internal error occurred in the query attempt.	An unexpected error occurred. Try again later, and if the issue persists, contact Technical Support.	Retry the query after some time. If the issue persists, contact Tenable Support.
Active Query Management	DnsError	A DNS hostname not found for the target IP.	Failed to locate target hostname for the given IP address. This may be because the hostname is incorrect or the device may be unavailable. Please verify the device hostname or the network configuration and try again.	Verify if the reverse DNS Lookup is enabled and the DNS pointer record (PTR) is defined for the IP.
Active Query Management	HostUnreachableError	A query target cannot be reached. Check your routing.	Failed to reach the device due to a network connectivity issue. Please check your network or firewall settings and try again.	Check your network connectivity and firewall settings and retry the active query.
Active Query Management	TimeoutError	A query has received no response from the target and reached timeout.	The query request timed out. This may be due to temporary network issues or a slow response from the device. Please try the query again later.	Retry the query after some time.
Active Query Management	NetworkError	A query has received an error response from the network.	The query failed due to a network error. This may be due to temporary network issues or firewall restrictions. Please check your network connectivity and retry the query.	Check your network connectivity and retry the query.
Active Query Management	ProtocolError	A query has received an unexpected response from the target.	Response from the device is in an unsupported format. This may be due to an incompatible protocol version on the device or a temporary device issue. Please check device compatibility or retry the query later.	Check whether the destination device is compatible with or retry the query after some time.
Active Query Management	AuthenticationError	Invalid authentication credentials were used in the query.	Authentication to the device failed. This may be due to incorrect credentials. Please verify your credentials and try again.	Verify your credentials and retry the query.
Active Query Management	LimitExceededError	Tenable One OT Exposure has reached the limit for failed queries against the target.	Active queries to this device are paused as it has reached the limit for failed queries. Try again later and if the issue persists, contact Technical Support.	There are several failed queries to the device. Retry the query after some time, and if the issue persists, contact Technical Support.
Active Query Management	NoPotentialClients	No valid clients exist in the target query range (CIDR block, asset list, or IP range).	Active query failed to find any accessible devices in the target range. User-applied restrictions might block some devices (CIDR block, asset list, or IP range). Please review your selection and access controls.	The target devices may not be accessible because of user-applied restrictions. Review your access control settings and retry the query.
Active Query Management	NoAllowedClients	No allowed clients exist in the target query range (CIDR block, asset list, or IP range).	Active query failed to find compatible devices in the target range (CIDR block, asset list, or IP range). Please review your selection and access controls.	The target devices may not be compatible with Tenable One OT Exposure settings. Review your access control settings and retry the query.
IoT	ServiceUnavailable	Service is unavailable, may be and issue with startup or after reset.	The IoT Connector service is temporarily unavailable or is facing an issue. Try again later and if the problem persists, contact Support.	Retry the query after some time as the IoT Connector service may be temporarily down. If the issue persists, contact Technical Support.
IoT	IotConnectorSecureModeError	The IoT connector cannot connect with a remote installed IoT agent.	IoT connector secure mode error. The IoT Agent on the remote system must be reinstalled to allow connections again.	Reinstall the IoT Agent on the remote system and retry the connection.
IoT	IotConnectorIpAlreadyExists	The user is trying to add a connector with an IP that already exists.	Tenable One OT Exposure failed to create the connector. The IP address provided is already in use by another connector. Please provide a unique IP address and try again.	Provide a unique IP address and try to add the connector.
Server Pairing: (Enterprise Manager (EM), External Server, FW)	WrongCertificate	The user is trying to pair ICP to EM with an invalid certificate.	The pairing failed due to an invalid security certificate. Please verify the server certificate and try again. If this persists, contact the server administrator.	Generate a new security certificate and try pairing the ICP to EM. If the issue persists, contact the server administrator.
Server Pairing: (EM, External Server, FW)	MissingEmAddress	Only via API	Pairing requires a server address. Please provide the IP address or hostname of the server.	Provide the IP address or hostname of the server you want to connect and try again.
Server Pairing: (EM, External Server, FW)	MissingPassword	Only via API	Credentials are incomplete. Please provide the password for the pairing server and try again.	Provide a username and password for the server and try again.
Server Pairing: (EM, External Server, FW)	MissingCredentials	Only via API	The pairing server requires credentials to connect. Please provide the necessary credentials.	Provide valid credentials for the server and try again.
Server Pairing: (EM, External Server, FW)	BothApiKeyAndUserCredentials	Only via API	Only one authentication method is allowed for pairing with this server. Please remove either the API key or user credentials and try again.	Use either API key or user credentials for pairing.
OT Feeds: PII/Suricata/Nessus	NessusNotReady	Service is unavailable, may be an issue with startup or after reset.	The Nessus service is temporarily unavailable or is facing an issue. Try again later and if the problem persists, contact Support.	The Nessus service may be down, so try reaching the service after some time, or if the issue persists, contact Tenable Support.
OT Feeds: PII/Suricata/Nessus	MissingFile	Only via API	The configuration file is missing. Please upload a valid configuration file in the supported format to proceed.	Upload a valid configuration file.
OT Feeds: PII/Suricata/Nessus	InvalidFile	The uploaded file is invalid.	The configuration file is invalid. The file may be in an unsupported format or missing version information. Please review the documentation for supported formats and required fields and try again.	Check whether the format or version of the uploaded file is valid before uploading the file.
OT Feeds: PII/Suricata/Nessus	NoSpaceLeftOnDevice	Uploading a file during online or offline mode while there is no space left on the device for the new one.	Unable to save the new configuration file due to insufficient storage space. Please free up some space on the device and try again.	Free up space on the device and try uploading the configuration file.
OT Feeds: PII/Suricata/Nessus	OldLicense	The user is using a license without valid credentials.	Action not allowed due to an outdated version format. Please obtain a new license in the supported format and try again.	Upgrade your Tenable One OT Exposure license in the supported format.
OT Feeds: PII/Suricata/Nessus	UpdateAlreadyInProgress	The user is currently running an update while there is already one job in progress, and only one update can run at a time.	An update is in progress for this device. Please wait for the current update to complete before starting another update.	Wait for the current update to complete before you try again.
OT Feeds: PII/Suricata/Nessus	OlderVersionUpdateAttempt	The user is attempting to downgrade to an earlier version.	File upload failed due to an active newer version. Ensure you have the latest updated file and try uploading again.	Ensure the file you are trying to upload is the latest version.