On Tuesday, July 11th, 2023 we experienced a platform outage due to failure of one of our critical infrastructure hosts that affected all of Sonar’s services. This outage lasted between 3 – 4 hours for some accounts. We are deeply sorry for the inconvenience this has caused. Our team was aware of the outage immediately and made every effort to resolve the issue as quickly as possible. 

We aim to be as transparent as possible with our users. Below is some more detailed information regarding the outage and what impacts it had. We thank you for your patience while we were bringing Sonar back online and are working diligently to prevent any outage like this from happening in the future. 

If you have any questions about how this might have affected your Sonar instance, please feel free to reach out to us directly at [email protected].

Date & Time of Outage


Tuesday, July 11th 3:22pm CST resolved on Tuesday, July 11th 7:17pm CST

Total outage time: 3 hrs 55 min

United States

Tuesday, July 11th 3:22pm CST resolved on Tuesday, July 11th 6:12pm CST

Total outage time: 2 hrs 50 min

Summary of Impact

Sonar Software utilizes Microsoft Azure as a core infrastructure provider. Yesterday, July 11th, 2023 Sonar experienced a service outage due to Azure’s platform becoming unavailable for a short period of time. This impacted Sonar’s platform as well as access to Sonar’s support team. When Azure became available again, Sonar had to initiate a full start up process for both US and Canadian data centers.

Customer Impact

Overall, any usage of the V2 application both in US/CA would have been halted when the application was down during that window.

Billing processing during this period was halted, but would have begun to process when the application was brought back online.

Any external requests made to the Sonar API by a custom application would not have been received during the outage period.

Data usage based on Netflow was lost during this period if your Netflow device did not cache/resubmit the data, this data usage is unrecoverable due to the endpoint being down during the outage period.

Sonar support was unavailable during the outage period.


Sonar is working with Microsoft Azure to prevent this type of outage in the future if at all possible.

Next Steps

If you have any questions about your account, please contact [email protected].