Hi ,
I have three RWDC , two of them are located in HQ and one is in our DR site.These three servers as PSLGIDC-01(10.4.10.10), PSLGIDC-02( 10.4.10.11) & DRLGIDC-03 ( 10.4.110.10). After that i created one RODC in our branch office with named BRSLGIERODC2500( 192.168.82.251 ).All of the RWDC are windows server 2008 r2 also all are on virtual environment. RODC server is windows server 2012 standard I had created site and subnet for RODC as normal RODC installation .Also configure RODC as standard procedure with DNS and GC & site replication is working properly.Also primary DNS of the RODC server is 192.168.82.251.The issue is that my RODC DNS server is getting error "4015" after every 9 hours .In DNS event getting error message like " The DNS server has encountered a critical error from the Active Directory. Check that the Active Directory is functioning properly. The extended error debug information (which may be empty) is "". The event data contains the error.". All replication are shows successful from RODC to RWDC and reversal.Please advice..