After I upgraded from 6.8.0 to 6.8.1 through the update plugin, my server hung while booting. I was unable to access the webgui and couldn't connect via telnet. I had to hard power down the server. I then pulled the USB stick and reverted to 6.8.0 by copying the previous folder into the main. I don't have an easy way to connect to a monitor so I'm unsure what was going on. Seems like others are having similar issues though?