Suddenly the OS connection from the Foglight Agent Manager (FglAM) is failing and the following error appears in the log files:
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2019-01-08 08:44:11.153 ERROR [ConnectionManagementThread-[SSHService-YourAgentName]-[Tue Jan 08 08:43:56 EST 2019][SSH Connection Profile {Host = YourHost, Agent = YourAgentName, Port = 22, Environment = {}}]] com.quest.qsi.fason.framework.connections.fglam.ssh.SSHConnectionService - Failed to establish a connection to host YourHost using credentials of the following types: user-password, RSA public key, clients login
com.quest.glue.api.services.RemoteConnectionException: A connection could not be established to YourHost:22
[...]
Caused by: com.quest.glue.api.services.ConnectionRefusedException: the connection to the remote machine was broken while trying to perform public key authentication [...] Caused by: java.io.IOException: Publickey authentication failed.
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