Hi i am facing the same issue .
When i do telnet its showng the connection but not forwarding the data.
Below is my error
The TCP output processor has paused the data flow. Forwarding to output group default-autolb-group has been blocked for 6200 seconds. This will probably stall the data flow towards indexing and other network outputs. Review the receiving system's health in the Splunk Monitoring Console. It is probably not accepting data.
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