Question : NSLOOKUP LDAP

I get the following error when I run the NSLOOKUP:
All my other test passes except for this one.

LDAP . . . . . passed ( says it has passed)
[WARNING] Failed to query SPN registration on DC "1"
[WARNING] Failed to query SPN registration on DC "2"
[WARNING] Failed to query SPN registration on DC "3"

Can someone please just let me know if this is a problem or not.
Thank you so much

Answer : NSLOOKUP LDAP

I have the same problem.  

Try and run "nltest.exe /SC_QUERY: on one of the DCs and post the results.