I have a RB411 that I tried to install 7.0 Beta8 but it will not boot up fully. Sometimes it will boot enough to give a login prompt then it will reboot on it’s own. I tried an upgrade from 6.47 running routerboot 6.47 and I also tried a netinstall with the same results.
Read this posting in the RouterOs 7.0beta8 thread.
http://forum.mikrotik.com/t/v7-0beta8-development-is-released/140169/1
Yeah looks like someone else had the same problem. I even tried to extract the routerboot firmware from the upgrade file and manually upgrade the firmware before router os but that didn’t work either.
Problem stayed.
Tested on RB411L
RouterOS version: 7.1.1 stable and 7.2rc1
Fully booted after 20 minutes. IP is not released from DHCP server connected device on ether1 port.