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This product reached the end of support date on March 31, 2021.

Collector Unable to Connect to Server

Dynatrace Helper
Dynatrace Helper

Collector is unable to connect to server :

2017-10-24 10:21:54 SEVERE [ActiveCollectorSessionInitializer] authentication with server not successful
2017-10-24 10:21:54 WARNING [SessionHandshakeRequest] unsuccessful session handshake for session - session initialization was canceled locally [session=<server-ip>:Plain:Deflate:Collector]
2017-10-24 10:21:54 WARNING [Collector] unable to connect to server - created session was null
2017-10-24 10:21:54 INFO [Collector] Server[<server-ip>] has been disconnected - reconnecting in 15s


Dynatrace Helper
Dynatrace Helper

Looking into this deeper,

[ActiveCollectorSessionInitializer] authentication with server not successful

It was an authentication issue, looking at the other collectors, it seems as though we were missing the authstring="" within collector.config.xml.

When using the AppMon client to change the port from 6699 to 6998, the client removed/defaulted the authstring that was set.

Once that was set to the correct string, we were able to have the collector talk to the AppMon Server.