No SSH Prompt

Single Board Computers Odroid N2/N2Plus/C4
1

Hi all,

N2 with CE 9.2.5.

This N2 is several hundreds of Kilometres away from me and I have setup port forwarding on the Router as port 5750 is forwarded to port 22. I also have DuckDNS setup as the IP is not static.

All has been working just fine for several months now until recently I have not been getting SSH login prompts when trying to access it. Sometimes if you hit Enter several times you will get a prompt but you may have to do this 10-20 times to eventually get that prompt.

If I Telnet to port 5750 I get an SSH response:

SSH-2.0-OpenSSH_8.3

When I next login is there anything I can do to improve the situation?

TIA

Greg

2

I have just noticed the CPU usage is rather high, especially since it’s in an idle state and only has 2 apps installed. Plex for Kodi and VNC.

1002×930

3

No ideas anyone?

4

Maybe something blocks some of your TCP packets?

5

Don’t know, but how would I check? Seems strange that it’s been working fine and suddenly this problem. I get a connection to the remote device OK, just no login prompt appears. It will eventually give you the prompt if you disconnect and re-connect enough times.

Very strange indeed.

6

Hard to tell without sniffing network on both sides at the same time.
When it gets connected eventually is the response ok when typing?

7

Yes, seems OK. However as noted above the CPU usage does seem rather high for an N2 with only 2 Add-ons and in an idle state.

8

I see your uptime is 6 days. Just for a test try to restart it once per day. To see if ssh issues are fixed and check cpu usage as well.

9

Did some more testing and exiting Plex drops the CPU usage from 50 to 2%, so it seems like a Plex thing that’s causing the high CPU usage.

Took a look at the kodi log and its size is massive and full of these errors:

2020-12-07 08:29:08.037 T:3717489536 ERROR: _________________________________________________________________________________
2020-12-07 08:29:08.037 T:3717489536 ERROR: script.plex: ERROR:
2020-12-07 08:29:08.037 T:3717489536 ERROR: Traceback (most recent call last):
2020-12-07 08:29:08.037 T:3717489536 ERROR: File “/storage/.kodi/addons/script.plex/lib/util.py”, line 453, in _tick
2020-12-07 08:29:08.037 T:3717489536 ERROR: r.tick()
2020-12-07 08:29:08.037 T:3717489536 ERROR: File “/storage/.kodi/addons/script.plex/lib/windows/home.py”, line 436, in tick
2020-12-07 08:29:08.037 T:3717489536 ERROR: self.showHubs(self.lastSection, update=True)
2020-12-07 08:29:08.037 T:3717489536 ERROR: File “/storage/.kodi/addons/script.plex/lib/windows/home.py”, line 794, in showHubs
2020-12-07 08:29:08.038 T:3717489536 ERROR: self._showHubs(section=section, update=update)
2020-12-07 08:29:08.038 T:3717489536 ERROR: File “/storage/.kodi/addons/script.plex/lib/windows/home.py”, line 802, in _showHubs
2020-12-07 08:29:08.038 T:3717489536 ERROR: if not plexapp.SERVERMANAGER.selectedServer.hasHubs():
2020-12-07 08:29:08.038 T:3717489536 ERROR: AttributeError: ‘NoneType’ object has no attribute ‘hasHubs’
2020-12-07 08:29:08.038 T:3717489536 ERROR: _________________________________________________________________________________
2020-12-07 08:29:08.038 T:3717489536 ERROR: `

Any clues on what might be causing the errors?

BTW - Setup another N2 with just Plex installed and with Plex running CPU usage is around 10% so there’s definitely something wrong with this remote N2.

10

You need to ask Plex addon developers about this error. Maybe you need to update addon to newer version.

11

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