User's Manual
Polycom® RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide
H-72 Polycom, Inc.
Active Alarms and Troubleshooting
Active Alarms
The following active alarms may be displayed in the Collaboration Server System Alerts 
pane when the Collaboration Server is configured for integration in the OCS environment:
Table H-9 New Active Alarms
Alarm Code Alarm Description
SIP TLS: Failed to load or verify 
certificate files
This alarm indicates that the certificate files required for SIP TLS 
could not be loaded to the Collaboration Server. Possible causes 
are: 
• Incorrect certificate file name. Only files with the following 
names can be loaded to the system: rootCA.pem, pkey.pem, 
cert.pem and certPassword.txt
• Wrong certificate file type. Only files of the following types 
can be loaded to the system: rootCA.pem, pkey.pem and 
cert.pem and certPassword.txt
• The contents of the certificate file does not match the system 
parameters
SIP TLS: Registration transport 
error
This alarm indicates that the communication with the SIP server 
cannot be established. Possible causes are: 
• Incorrect IP address of the SIP server
• The SIP server listening port is other than the one defined in 
the system
• The OCS services are stopped
Note:
Sometimes this alarm may be activated without real cause. 
Resetting the MCU may clear the alarm.
SIP TLS: Registration 
handshake failure
This alarm indicates a mismatch between the security protocols 
of the OCS and the Collaboration Server, preventing the 
Registration of the Collaboration Server to the OCS.
SIP TLS: Registration server not 
responding
This alarm is displayed when the Collaboration Server does not 
receive a response from the OCS to the registration request in 
the expected time frame. Possible causes are: 
• The Collaboration Server FQDN name is not defined in the 
OCS pool, or is defined incorrectly.
• The time frame for the expected response was too short and 
it will be updated with the next data refresh. The alarm may 
be cleared automatically the next time the data is refreshed. 
Alternatively, the OCS Pool Service can be stopped and 
restarted to refresh the data.
• The Collaboration Server FQDN name is not defined in the 
DNS server. Ping the DNS using the Collaboration Server 
FQDN name to ensure that the Collaboration Server is 
correctly registered to the DNS.










