[MT-AU Public] 6.34 reset issue turns RB-941-2ND into paper weight

Hi Guys, I was playing with some RB-941-2ND's and I upgraded them to 6.34 and I am now unable to log in to them after a reset. Basically I set up a CPE style config using pppoe and mistyped the password and therefore reset it to get back in and following a reset it did not respond on 192.168.88.1 at all. Is there any way to bring these devices back to life? I have tried netinstall with out any luck and multiple resets. Any help would be appreciated. Thanks Andrew