What should be checked if a Dynatrace SaaS environment loses connection to OneAgents?

When a Dynatrace SaaS environment loses connection to OneAgents, the most relevant factor to check first is the network and firewall configurations. This is because OneAgents depend on network connectivity to communicate with the Dynatrace environment and send performance data. Any changes or issues related to network settings, such as firewall rules or proxy settings, could disrupt this critical communication.

Network configurations can involve various aspects such as DNS resolution, IP address accessibility, or even routing issues that can prevent OneAgents from reaching the Dynatrace servers. Obtaining telemetry data and sending it without interruptions is essential for maintaining observability of the monitored applications or infrastructure. Therefore, ensuring that there are no restrictions at the network level is paramount in troubleshooting connectivity issues.

The other considerations, while important in their own contexts, would typically be addressed after confirming that network connectivity is intact. For instance, hardware compatibility issues may affect performance but are unlikely to suddenly disrupt existing connections. Software integration with third-party tools and outdated system software versions are also critical, yet they are less likely to be the immediate cause of a connection loss between the OneAgent and the SaaS environment compared to network-related factors.