I've got a Lan Turtle that works 100% perfectly, except that I seem to have forgotten the account/password I used (I assume it's "root" and *something*, but none of my normal passwords seem to work). It's been in a box for three or four months, and I finally pulled it out to use it today, and realized I can't log into it. It still creates a reverse shell to my linux box out on the internet, and both that port and the local (USB side) port respond to ssh. So I followed the directions on the wiki to do a factory default/firmware upgrade. But no matter what I do, I can't get it into recovery mode. If I let it boot normally, it assigns me the address 172.16.84.235, and I can ssh/ping it at 172.16.84.1. If I hold the button down for three seconds (I've tried everything from 1 second to 30 seconds), it never does anything useful. Ever. If I watch /var/log/syslog, it clearly finds and enumerates the ethernet and attempts to get a DHCP address from the device. But it never does. I can disable the lan manager and manually assign myself 192.168.1.2/24, but nothing ever appears as 192.168.1.1. If I do 'sudo arp -a', I've got nothing. If I do an 'ifconfig eth1', I get zero bytes RX. ping gets me nothing, nmap gets me nothing. No matter how long I let it sit. Same behavior on Mint 22, Kali, and Ubuntu Server 14.04.3.
Help! What am I doing wrong?