If a Relay connection failure occurs on the client application's side, without any informative or helpful information available in the local logs to identify the underlying issues, users can check the logs from the brainCloud portal for further investigation. For example, suppose the client application sends data packets exceeding the maximum packet size limitation of 1024 bytes for the relay server. In that case, a connection break may occur immediately, as evidenced by the local log (assuming a UDP connection is used).
Relay connect failure: Timed out. Too many packet drops.
Relay connect failure: UDP Receive Failed
I/System.out: RELAY UDP: Timed out. Too many packet drops
Upon accessing the brainCloud portal page, users can navigate to the Global > Logs > Recent Errors page, and check details of the issue from the context of the app_error_details blade by clicking on the specific error record.
Note: Please ensure that you select the "Info" checkbox, then click on the refresh icon.