Cannot connect after Octoprint update

Octoprint was asking to update something earlier. I didn't pay a whole lot of attention to what, I just let it do it.
After that, I cannot connect to it at all.
Not through the Web Interface, nor through ssh.
I do get a reply to a ping, so it is alive...

What is the problem?
No connection to Rpi.

What did you already try to solve it?
Switch it off and on again...

Logs (syslog, dmesg, ... no logs, no support)
$ ping

Pinging with 32 bytes of data:
Reply from bytes=32 time=117ms TTL=64
Reply from bytes=32 time=15ms TTL=64
Reply from bytes=32 time=26ms TTL=64
Reply from bytes=32 time=15ms TTL=64

$ ssh -Y pi@
ssh: connect to host port 22: Connection refused

Additional information about your network (Hardware you are trying to connect to, hardware you are trying to connect from, router, access point, used operating systems, ...)

$ ping octopi2.local

Pinging octopi2.local [] with 32 bytes of data:
Reply from bytes=32 time=101ms TTL=64
Reply from bytes=32 time=20ms TTL=64
Reply from bytes=32 time=18ms TTL=64
Reply from bytes=32 time=20ms TTL=64

So that's sorted that problem.
Just a question now of what's connected on 15...

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You are going to have to ask your router, but probably nothing.

Well @Hairyloon did get a pong from 15 :smiley:

My router is habitually unhelpful: I am yet to find any sensible way of getting it to communicate.
There is a web interface of sorts on its IP address, but it's a bit poor.

Probably doesn't matter.

follow the troubleshooting ssh to the .16 address and see if the octoprint processes are running... and DO NOT just switch off/on power to reboot the pi. you will corrupt your sd card and have to reload all from scratch if the sd card itself isnt damaged

If I didn't get this wrong

16 is working.
The pi got a new ip and @Hairyloon just doesn't know which device is using the 15 now.

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Sorry, I wasn't clear: I'm sorted now. I thought I'd leave the post up for the next fool who missed the bleedin' obvious. :wink:

What else are you supposed to do?
Drag over a keyboard and monitor, plug in, log on and shut down?
Power down is not ideal, but what choice is there, unless you've fitted a reset button?

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Use the menu in the web interface (provided you use OctoPi).