Developer Mode ON, key retrieval works, but SSH port 9922 refuses connections — 55NANO916NA

SDK
1

Hello,

I cannot install or test an app on my LG webOS TV because the developer SSH connection on port 9922 is refused.

Device and environment

  • TV model: LG 55NANO916NA
  • webOS TV version: 5.6.2-21
  • The TV reports no available software updates.
  • Location: Tbilisi, Georgia
  • Computer: Mac
  • CLI: @webos-tools/cli, run using npx

What works

  • Developer Mode Status shows ON.
  • The developer session has approximately 999 hours remaining.
  • Key Server can be enabled.
  • TCP port 9991 accepts connections.
  • ares-novacom --getkey successfully downloads the private key.
  • The downloaded key decrypts correctly and passes an RSA integrity check.

What fails

TCP port 9922 immediately refuses connections. For example:

nc -vz 192.168.31.48 9991
Connection to 192.168.31.48 port 9991 succeeded!

nc -vz 192.168.31.48 9922
Connection refused

The CLI produces:

npx ares-device --device HomeTV --system-info
[Info] Set target device : HomeTV
ares-device ERR! [syscall failure]: connect ECONNREFUSED 192.168.31.48:9922

ares-install and ares-launch fail with the same error.

The configured SSH username is prisoner, and the port is 9922.

Troubleshooting already completed

  • Disabled and re-enabled Developer Mode, allowing the TV to restart.
  • Unplugged the TV from power and restarted it.
  • Deleted and reinstalled the Developer Mode app. Its enabled state appeared to persist after reinstalling.
  • Checked for TV software updates.
  • Tested on two separate networks: home Wi-Fi and a phone hotspot. The Mac and TV were on the same network for each test.
  • On both networks, port 9991 was accessible while port 9922 returned Connection refused.
  • Removed and recreated the laptop’s device configuration with a name containing no spaces (HomeTV). The error persisted.

Questions

  1. Is this a known issue with this model or webOS version?
  2. How can I diagnose why the developer SSH service is not listening on port 9922?
  3. Is there a supported way to restart or repair that service without a factory reset?
  4. Could LG Services Country, account region, or user-agreement state cause this behavior?
  5. What additional logs or version information should I provide?

Thank you.