I don't know if I'm blind or what, but it seems to me that some settings are missing from the settings menu. I used the exact apk the OP posted, and in settings, I find MSS clamping, but thats it. In fact, here is my entire settings list...
--Wifi
Change device-profile
change setup-method
enable wifi-encryption
change passphrase
change ssid
hide ssid
change channel
--Security
Enable access-control
--LAN
Change LAN
MSS clamping
--Domain-nameserver
change preferred dns
change alternate dns
--Notifications
client notification mode
notification ringtone
vibrate on connect
--miscellaneous
disable update check
disable wake-lock
battery temperature
Yup, no routing fix to be seen, which I assume is why I can authenticate with my phone from a client device, but I get no DHCP address(the device always self-assigns one after a minute or so)