To resolve the issue and continue using root hints, change the MaxCacheTTL registry value to 2 days or greater. 

Warning: Serious problems might occur if you modify the registry incorrectly by using Registry Editor or another method. These problems might require you to reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk. 

1.    Start Registry Editor (regedit.exe). 

2.    Locate the following registry key: 

3.    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS\Parameters 

4.    On the Edit menu, click New, click DWORD (32-bit) Value, and then add the following value:

  • Value: MaxCacheTTL
  • Data Type: DWORD
  • Data value: 0x2A300 (172800 seconds in decimal, or 2 days)



5.    Click OK. 

6.    Quit Registry Editor. 

7.    Restart the DNS Server service.