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DDNS & Backup DHCP

Q1. Installed CNR with DDNS configured. Can't ping FQDN for dynamic hosts. Read document & realised need to specify "to receive DHCP update from these addresses" field. Did that by also included as the DNS & DHCP are the same box. Still can't see registered dynamic hosts in DNS database?

Q2. Configured DHCP fail-over with both primary & backup on two different CNR servers. When right click on DHCP for related servers, found that in primary DHCP with error message of "Communication: Interrupted" & "Status: Partner Down"? In Backup DHCP, the message is just "Status:Recover" ?

Could anyone helps?

Thanks in advance.


Re: DDNS & Backup DHCP

Often times complex troubleshooting issues are best addressed in an interactive session with one of our trained technical assistance engineers. While other forum users may be able to help, it’s often difficult to do so for this type of issue.

To utilize the resources at our Technical Assistance Center, please visit and to open a case with one of our TAC engineers, visit

If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.

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