I have a professor whose Ares isn’t able to be reached by plugging in the ethernet cable. The address he used to connect with was 192.168.137.236, if memory serves. Are we missing something? He may have powered the printer off by unplugging it at some point. The next thing I hope to try is maybe fiddle with the Ethernet settings and ssh’ing into the Pi at that address (I couldn’t ping it though) and restarting the Octoprint service or something. Basically what this guy did: https://plus.google.com/+IvanHoeEeWu/posts/QJrkTMyw4rF
Thanks, have a good one.