D7000: cannot move DHCP range...

[GlassFeet]

I cannot get this router to use 10.0.7.* as DHCP.

Using 10.0.0.1 as Gway & 255.0.0.0 as netmask.

Fresh out of the box, updated firmware, restarted then applied 10.0.0.0/255.0.0.0 network.

All looks OK, but I cannot move DHCP to the new range - it remains greyed out.

I hope I am doing something silly.

The device works as intended, I just want to move DHCP off to a distinct range (10.0.7.X).

[TheEther]

It's probably Netgear being inflexible with the 10/8 range.  The following may not work, but try using a subnet mask of 255.255.255.0.  Otherwise, switch to something like 192.168.7.0/255.255.255.0.