Mesh Router disconnects shortly after certificate replacement

[luan-hue]

After replacing the digital certificate in Mesh Router, the application disconnects my user session within a few minutes. All open mappings and remote access windows are lost upon disconnection. This issue occurs approximately every 5 minutes or less, preventing normal usage of the application.

Steps to Reproduce:

Log in to Mesh Router.
Replace the digital certificate.
Observe the user session; it will disconnect after a few minutes.

Expected Behavior:
The user session should remain active, and open mappings and remote access windows should remain intact after certificate replacement.

Actual Behavior:
The session disconnects repeatedly, causing loss of all open mappings and remote sessions.

Frequency:
Consistently occurs after certificate replacement, approximately every 5 minutes.

[si458]

What do u mean digital certificate???

Are u talking about the web ssl certificate?

How are u replacing it?

What meshcentral version are u using?

What nodejs version?

Oversally replacing a web ssl cert is going to cause disconnections until u reconnect

[luan-hue]

A user connected to the MeshCentral Router (ClientIP) experiences disconnection while maintaining an active session with the server (ServerIP).

Relevant Wireshark Log
No. Time Source Destination Protocol Length Info
60 100.367081595 ServerIP ClientIP TCP 60 52737 → 443 [ACK] Seq=857 Ack=25333 Win=131328 Len=0
61 100.367500000 ServerIP ClientIP TLSv1.2 155 Application Data
62 100.374854670 ServerIP ClientIP TCP 60 52737 → 443 [FIN, ACK] Seq=857 Ack=25333 Win=131328 Len=0

Analysis
The TLSv1.2 Application Data packet indicates that the client was actively communicating with the server right before the disconnection.
The FIN, ACK packet indicates that the MeshCentral server is closing the TCP connection with the client.
This shows that the session is being terminated by the server/router, not the client network.

Likely Cause
Router idleTimeout or keepAliveInterval settings may be causing the server to close sessions prematurely.
Misconfiguration or absence of proper keep-alive settings can lead to forced disconnects even during active sessions.

[si458]

your output looks AI generated?

you didnt really answer any of my questions

[luan-hue]

Yes, I was referring to the SSL certificate.
I replaced it manually by switching to Cloudflare.

MeshCentral version: 1.1.44 (stable)
Node.js version: v20.19.5

I reinstalled Mesh and imported my backup, and since then I haven’t had any more issues with disconnections. The initial problem started right after the SSL certificate was renewed.
Thanks for your help!