In my test env I replicated the error.
error:00000000:lib(0):func(0):reason(0)
AES-GCM Decryption failed!
Decryption operation failed: AES-GCM Decryption failed!
error:00000000:lib(0):func(0):reason(0)
AES-GCM Decryption failed!
Decryption operation failed: AES-GCM Decryption failed!
If you are not using SSL on the node or have disabled the webserver remove the SSL stanza from server.conf, restart and check the logs. The node will connect to the cluster master.
Best~
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