Network / Firewall: Verify network connectivity and telnet/nc to port 7544 on both lnyeqmsn3u.nam.nsroot.net and lnyeqmsn4u.nam.nsroot.net from the hosting container/server.
TIBCO EMS Server Status: Confirm the TIBCO EMS daemon on both active/standby hosts is running and accepting SSL connections on port 7544.
SSL Certificates: Verify that the client keystore/truststore contains valid SSL certificates or trusted root CA needed to negotiate the TLS handshake with 7544.
Retry Configuration: Consider increasing connect.attemptcount or ReconnAttemptCountForQuantum in the environment configuration if temporary network blips or failover transitions occur frequently.
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