Access to serveB via telnet from serverA is slow or denied. Examining the file
/var/log/secure there is a consistent delay from the time the login is presented to the time the session is actually created this could lead to a timeout error.
Nov 11 02:34:15 host login: pam_unix(remote:session): session opened for user guest by (uid=0) Nov 11 02:34:15 host login: LOGIN ON pts/2 BY guest FROM 22.214.171.124 Nov 11 02:37:33 host login: pam_unix(remote:session): session opened for user guest by (uid=0)
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