Error Messages

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

Category	Error Category Name	Error Description	User Interface Message	Recommended Action
Active Query Management	NoRoutesForClient	A query received a routing error from the network.	There may be a network connectivity issue. Please check 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.	A DNS hostname could not be found for the target IP. Please ensure that reverse DNS is enabled and a PTR record is defined for the IP.	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.	Could not reach the device. This might be 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.	Network Timeout. 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.	A network error has occurred. 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.	Unsupported response format from the destination. This could be due to an incompatible protocol version on the device or a temporary network issue. Please check device compatibility or try the query again 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.	Failed to authenticate to the device. Credentials may be incorrect or missing, Please verify your credentials.	Verify your credentials and retry the query.
Active Query Management	LimitExceededError	OT Security has reached the limit for failed queries against the target.	Active queries to this device are paused due to too many failed queries. Try again later and If the issue persists, contact 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 found no 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 found no 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 OT Security 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 not available or has encountered an issue, try again later and if the issue 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.	Connector creation failed. The provided IP address 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 server presented an invalid security certificate. Please verify the server certificate and try again. If this persists, consult 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	No server address was provided for pairing. Please enter the IP address or hostname of the server you want to connect to and try again.	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	The provided credentials are incomplete. Please enter a 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	Missing connection credentials for the pairing server. Please provide the required credentials (e.g., username and password) and try again.	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 not yet available or has encountered an issue, try again later, and If the issue 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	No configuration file attached. 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 uploaded file is invalid. It may be due to 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.	The device does not have enough storage space to accommodate the new configuration file. 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 OT Security 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 already in progress for this device. Please wait for the current update to finish before attempting another one.	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.