Sensor health message reference
This article lists the sensor health messages displayed in the Sites and sensors page in the Azure portal.
For more information, see Understand sensor health.
|Disconnected||This sensor isn't communicating with Azure||Sensor is disconnected||Try signing into the sensor to check for errors or networking failures.
We also recommend reviewing the sensor networking configuration and verifying the sensor’s ability to communicate with Azure.
|Sanity failed||This sensor failed an internal consistency check||Sensor fails sanity||The sensor is in a degraded state.
Check the sensor for hardware failures and try restarting the sensor. If the issue isn't resolved, open a support ticket.
|No traffic detected||No traffic detected on the monitored network interfaces||No traffic detected||Check that the monitoring ports are connected to SPAN/monitor ports on the adjacent switch and that traffic is active on the link. At least one link with network traffic should be connected to the monitor ports.|
|Package upload failed||There was an error uploading the file to the sensor||Upload error||Verify the sensor’s ability to communicate with download.microsoft.com and retry.
If the problem persists, open a support ticket.
|Sensor update failed||There was an error installing the update.||Installation error||Open a support ticket.|
|Unstable traffic to Azure||Sensor’s connection to Azure is unstable||Unstable traffic to Azure||We recommend that you check the sensor WAN connection, the BW limit settings, and validate network equipment that might be on the route between the sensor and the cloud.|
|Outdated||Outdated software may result in a non-optimal experience||Sensor version is outdated||Upgrade your sensor software to the latest version to use the most recently available Defender for IoT features.|
|Pending activation||Waiting for sensor to connect for the first time||Pending activation||Upload the activation file to the sensor. If this doesn't resolve the problem, verify the sensor’s ability to communicate with Azure.|
|Pending reactivation||Waiting for reactivation with new license||Pending reactivation||Upload the new activation file to the sensor. If this doesn't resolve the problem, verify the sensor’s ability to communicate with Azure.|
Remediate each error as recommended. For more information, see Manage sensors with Defender for IoT in the Azure portal.