DHCP Client service does not start. Error 5: Access Denied

Question

Hi All

I have another problem, the DHCP Client service does not start.
Error 5: Access Denied can not start the DHCP Client service on Local Computer.

If I go to the registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp

Right click and choose Permissions. There should be the following:

System = Full Control
Local Service = Read
Network Service = Read
Local Admin = Full Control
Local Users = Read
Dhcp = (I cannot find this group and therefore cannot add it)

Can You help me?

Thank you

Salvatore

Answer 1

Try to just add nt service\dhcp. The account will not be listed in the users

Answer 2

the problem is that in the permissions there are no "nt service \ dhcp"

Answer 3

Hi

I tried, but can't find the service.

Best reguard

Answer 4

Just as mentioned earlier in another comment, it's good to confirm any recent changes.
In my case, the DHCP database backup location was recently set to a shared drive which lacked necessary permissions and triggered Event ID 1017 and also prevented the DHCP service from starting when the host was restarted.

I simply reset the DHCP database backup location in registry - HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DHCPServer\Parameters\BackupDatabasePath
The default path is C:\Windows\System32\dhcp\backup

Answer 5

regedit 
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DHCPServer\Parameters
	BackupDatabasePath =  C:\Windows\System32\dhcp\backup

or

CMD run as Administrator 
reg add "HKLM\SYSTEM\CurrentControlSet\Services\DHCPServer\Parameters" /v BackupDatabasePath /t REG_EXPAND_SZ /d "C:\Windows\System32\dhcp\backup" /f
sc start DHCPServer