DDwrt build numbers can produce different results depending on the router, we can’t test them on all various platforms.

Yesterday I tested the latest DDwrt release, 25697 and it was working:
http://dd-wrt.com/site/support/other-downloads?path=others%2Feko%2FBrainSlayer-V24-preSP2%2F2014%2F12-22-2014-r25697%2F

Please try that