Changing DHCP range deletes 2.4 GHz band on EA6500

I just installed Advanced Tomato on a Linksys EA6500V2. If i change the DHCP address range from the default of 192.168.1.2-192.168.1.51 I lose the 2.4 GHz band when I reboot. I even tried only enabling 2.4 GHz, but when the router is rebooted it comes back as 5 GHz! Since I have static addresses within this range already I would like to change it. I am using Advanced Tomato v3.3-138 AIO-64K. Has anyone seen this issue and, if so, found a solution? Thanks.

Update:
Actually, it turns out that...

Changing DHCP range deletes 2.4 GHz band on EA6500