Frequent random WebSocket disconnects

[pgerke]

Describe The Bug: The plugin frequently disconnects from the SysAP with error 1006 and immediately reconnects.

To Reproduce: Wait.

Expected behavior: No random reconnects without apparent reason.

Logs:

[7/22/2023, 9:43:31 AM] [free@home] Websocket to System Access Point was closed with code 1006: 
[7/22/2023, 9:43:31 AM] [free@home] Attempting to reconnect in 200ms [1/10]
[7/22/2023, 9:43:31 AM] [free@home] Connection closed
[7/22/2023, 9:43:31 AM] [free@home] TLS certificate verification is disabled! This poses a security risk, activating certificate verification is strictly recommended.
[7/22/2023, 9:43:31 AM] [free@home] Connection opened

Plugin Config:

{
    "name": "free@home",
    "host": "192.168.xxx.xxx",
    "user": "xxx",
    "password": "xxx",
    "tlsEnabled": true,
    "disableCertificateVerification": true,
    "verboseErrors": false,
    "experimental": false,
    "ignoredChannels": [
        "ABB6B6161344/ch0011",
        "ABB6B6161344/ch0012",
        "ABB6B6161344/ch0013"
    ],
    "platform": "FreeAtHomeLocalApi"
}

Screenshots: N/A

Environment:

• Plugin Version: v1.6.0
• Homebridge Version: v1.6.1
• Node.js Version: v16.16.0
• NPM Version: 8.11.0
• Operating System: hb-service on Synology DSM 7

[pgerke]

I spent some time yesterday trying to understand what is happening yesterday:

• All my appplications using the free@home local API client are affected.
• When a disconnect happens, all clients are disconnected at the same time. I've reproducibly observed clients on separate machines disconnected within a couple of milliseconds.
• I tried to activate logging on the SysAP. It informs me that to activate logging, the "application has to be restarted". I don't know which application it refers to.
• After that there were no reconnects at all for a couple of hours. Then it started again with the previous frequency.
• This leads me to believe that the origin might not be in the local API client after all.
• When the disconnect happens, there is no error happening. It's just a disconnect. The reason is always empty.
• In my logs I've seen a number of events related to a Sonos device close to reconnects. I need to investigate further to see if it's related of just coincidence.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[pgerke]

The reconnects are still there, also with the current firmware version released after the issue was first observed. I don't have any leads as to what is causing the behavior and the trivial workaround is to reconnect when the connection is closed. So I'll close the ticket and will re-open if the issue becomes actionable.

[github-actions[bot]]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.