dd-wrt Not saving static leases

I'm trying to set a few static leases with dd-wrt, but they aren't saving. When I try to save with the web interface the page instantly stops connecting after I hit save, and doesn't save when I hit apply settings. So I tried setting them with commands from the app and it still won't apply them. How can I have them actually save?

Commands:

nvram set static_leasenum=3
nvram set static_leases="28:18:78:82:15:AD=cclloyd-XboxOne=192.168.1.120= a8:20:66:45:49:27=cclloyd-MBP-eth=192.168.1.121= 14:10:9f:e3:82:f5=cclloyd-MBP-wifi=192.168.1.122="

dd-wrt Info:

Router Model Linksys WRT610N v2
Firmware Version DD-WRT v24-sp2 (03/25/13) mega - build 21061
Kernel Version Linux 2.6.24.111 #14323 Mon Mar 25 03:12:53 CET 2013 mips

Also it seems to save them when I do just two leases, but not when I do three leases, no matter the order or devices.