New M270 cannot boot up after OS downgraded
Because I was trying to import a configuration file that i downloaded from another WatchGuard xtm 515 with OS 11.8. I downgraded my new M270 box from 12.4 to 11.12.4. after the box prompt me to reboot the new box boot up with the arm indicator light staying at red and never change to green. At this stage all the ports are not working
I try to reset the box to default factory mode but still resulting in the arm indicator staying red after booting up. Port not working, i cannot connect to interface 1 or the default 10.0.1.1
Please help !! what exactly happened? Did I corrupt the OS? how can manually load another OS into the new box?