So what do we know about the openWRT failsafe mode on the WL-520gU?
I was following the network setup procedure outlined in step 4 of mightyohm's guide. I got a little too cocky and changed all the configs at once, then threw the /etc/init.d/network restart switch. Now my router seems deaf! I cannot ping it nor does the AIR indicator light up. It does not seem to be on my wireless 'net.
I followed the suggestions here
. I see the "Press reset now, to enter Failsafe!" message when running nc ("nc -lu 4919" seems to be the syntax on the MAC btw). That I see the message gives me confidence that the router is booting okay. I press the reset button for 2-seconds and get nothing. After holding for ~10 sec the power light goes out and eventually back on, but I cannot ping or telnet to it at 192.168.1.1, which the docs say it should default to.
I guess my next option is to wire it into my home 'net and see if it grabs a dhcp lease, then connect to it that way.
Unfortunately do not have a TTL level serial adapter. (It has been ordered.)
Edit: I should add I am running might's canned 2.4 kamikaze image, r12857 I think.