Event id – 1046 :

Event id – 1046 :
The DHCP server could not be authorized because no domain controller was found.
1) Verify that the domain controller is running.
2) Check if any old Domain controller is brought on this has the same domain name.
3) One of the key things that need’s to be checked is whether DNS name resolution working properly. This can verified using Nslookup command line tool and type the name of the server or any of the DNS client’s names which should be resolved to corresponding name.
4) Check the DNS Zone records for duplicate name or IP address.
5) Verify that the DHCP server had authorized in AD.