If the OneAgent does not appear, what should you check first?

When troubleshooting why the OneAgent is not appearing, the first step should be to verify ports, proxies, and time synchronization. This is crucial because OneAgent relies on proper network connectivity to communicate with the Dynatrace platform. If there are issues with ports being blocked, misconfigured proxies, or problems with time synchronization, the agent may fail to establish a connection.

Ports must be open to allow the necessary traffic for data transmission, and proxies must be correctly configured for the OneAgent to route its communication effectively. Time synchronization is also important because discrepancies can prevent the agent from communicating with the server accurately, leading to issues like data inconsistency or failure to report back.

While checking application logs, network cable connections, and server uptime are important troubleshooting steps, they come after verifying that network configurations are correctly set up since they are more likely to affect the OneAgent's ability to connect initially.