I've bricked my RB1100. Netinstall won't recognize the unit. When I use the serial port and reboot I get Authentication Failure and that's as far as I can go. Any suggestions? Thanks.

Try to boot/power on the device by holding/pushing the reset button to load the secondary BIOS.

Try to boot/power on the device by holding/pushing the reset button to load the secondary BIOS.

I did that but it didn't work

Try "administrator" with empty password. Few months ago I had problem with system USB flash (MT for x86 version) and it helped. I think that when MT can't get access to pass file (like Linux Shadow) it "switches" to default empty password