I have RB2011UiAS-RM that has stuck on load kernel after last power loss. Netinstall not working becouse ETH1 don't flashes. I don't even know if it works, but POE power woks. I have try update router with serial cable. Uploading *.npk file xmodem and after that i got "invalid upgrade file id". So my question is there any chance to get that router working again? We order new RB3011, but is there any chance to get it work will be our emergency stuff.