We have created conditional forwarder zone with 3 IP and it goes fail when first DNS server goes down.
Ex: configured a zone name called test.com (10.0.0.1,10.0.0.2,10.0.0.3)
Could not able to resolve if 10.0.0.1 goes down and no issue with 10.0.0.2 and 10.0.0.3. So please let me know that why it is failing only with first IP.