Hello,
You are using a DDWrt build form 2015 which are all in beta. Use build 22118 (if available for your router) You can find it here: http://dd-wrt.com/site/support/other-downloads?path=others%2Feko%2FBrainSlayer-V24-preSP2%2F2013%2F
Be sure to reset the settings during flash.
