FTD 3105 -Post Failover the active firewall unable to resolve the FQDN

[adity]

We have 3105firewall with S/W:7.3.1 and we have face a very Strange issue, when the failover was happen  so that we unable to resolve our few FQDN from FW.

Error: issue with dns setting.

 and when I did the manual failover again it started resolving.

[Mark Elsen]

        - Check the DNS settings when the failover has happened ,

  M.

[adity]

I have checked the configuration are same.....

[adity]

Please suggest me if any particular I need to check!!!!!!!!!!!!

[Mark Elsen]

    - What are the DNS settings ?

  M.