ASUSWRT-Merlin Notes Revision as of Sunday, 20 December 2015 at 19:56 UTC

Downloaded the original firmware just in
case. Then
logged into router and backed up config in “Administration” →
“Restore/Save/Upload Setting”.

Got the enhanced firmware via this
page (scroll to the bottom).
Verified MD5.

Updated with new firmware. Rebooted. All was well.

Enabled manual assignment on “LAN” → “DHCP Server” and added devices and
names. This wasn’t working before. Yay.