Hi everybody, today i do a lot of upgrades using /system auto upgrade and 5/20 RBs are lossed…
Tomorrow i go to see whats happen. 4 RB133c(from 3rc5-8) & 1 RB532r5(from 3rc14)
Are any more with this problem?
Need to make sure that you are running 2.9.50 before upgrading to version 3
I have updated more than 15 RBs from 3RC versions without problems, only theses 5 are dead, all my RBs have 3.0rc6 to v3.0
SOLVED!
Unplugging and plugging againg this run again with the old v3.0, not upgraded to v3.1 and how i am an upgrader enthusiast 
i remove the package 3.1 from files and downloaded again by /system auto upgrade and now was succesfully upgraded to 3.1
Now go do the same in the others 4 dead routers…
Please MT guys, check this problem.. Gasoline is more expensive every day 
Regards!
I have the same isue, I upgrade routerboards 532 and 133c from 3.0 and dead
I got problem with my 133c upgrade to 3.1 too..
Most boxes I upgraded got resolved and is now upgraded to 3.2 that works like a dream… but I have 1 left thats causing trouble:
It rebooted every 2 minutes, then I managed to reset it, but when I try to log back in with winbox it gets connection refused all the time. I then tried telnet and ftp, but then I get a wrong password message. I tried the old password and no password at all, but I cant get back in.
Woops, try by console and netinstall…