How to change subnet after configuration

[atari37]

I just realized that my DHCP is using the wrong subnet (255.255.0.0) instead of (255.255.255.0). The option to change this is grayed out, it's of course assigning the wrong subnet to the workstations as well. How do I correct this?

Thanks

[cluberti]

In DHCP, disable the scope you need to change, and you should be able to modify the subnet and restart.

[atari37]

In DHCP, disable the scope you need to change, and you should be able to modify the subnet and restart.

I deactivated the scope but it was still grayed out. Do I have to delete the scope and recreate it? This will be a major headache.