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Unauthorize DHCP Server

When I view the authorized servers in the DHCP of my DC, it lists 2 servers (the current DHCP server and the old DHCP server). When I try to unauthorize the old DHCP server, a message pops up stating "there is no such object on the server" which is true since I demoted that old server and moved everything to my new DC.

The question is why is the old server still being listed in the authorized servers and how can I get rid of it?
0
lenivan
Asked:
lenivan
1 Solution
 
LauraEHunterMVPCommented:
using adsiedit from the Windows Support Tools



find the Dhcproot object in the following AD path DN:
CN=NetServices,CN=Services,CN=Configuration,DC=dom ain,DC=com



display the attribute Dhcpserver, and remove the corrupt or unwanted
servername/ip address value



once the entry is removed restart the Dhcp server service



They should appear correctly now, though double-check the DHCP MMC in case you need to re-authorize the correct one.
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