Ticket printing issue, QZ Tray WebSocket port mismatch
Bilau, Luis I Support-4-IT GmbH
Dear QZ Support Team,
Could you please advise which QZ Tray version and WebSocket port configuration is required for Ticketmaster/Microflex? I think I might have found the reason of why my connection is not working but i dont know the fix to it. Here is what
I found:
During the investigation of a ticket printing issue in Ticketmaster/Microflex, it was found that ticket printing is not available and the application reports that the printer is not configured correctly.
The browser console analysis showed that the web application cannot connect to QZ Tray. WebSocket errors with `ERR_CONNECTION_REFUSED` occur. The application attempts to establish connections to `wss://localhost.qz.io:8183` and `wss://localhost.qz.io:8484`.
QZ Tray is installed and running. In QZ Site Manager, Ticketmaster/Microflex is listed as an allowed and trusted site. The QZ certificate is valid. QZ Tray is also allowed in Windows Defender Firewall.
However, a check using `netstat` showed that QZ Tray is only listening on ports `8181` and `8182`. The ports used by the web application, `8183` and `8484`, are not open, and no service is listening on them. As a result, the connection from the browser is refused.
The QZ configuration file `prefs.properties` does not contain any port configuration. Therefore, a simple port change through this file is not possible. The QZ log identified the version as QZ Tray `2.2.4+1` with Java `11.0.17`.
Interim conclusion:
The issue is probably not caused by Windows Firewall, the QZ certificate, or the permissions in Site Manager. It is likely due to a version or configuration conflict between Ticketmaster/Microflex and QZ Tray, particularly regarding the WebSocket ports being used.
Could you please advise how the QZ Tray WebSocket ports can be aligned with the ports expected by Ticketmaster/Microflex, or whether a different QZ Tray version is required?
Kind regards,
Luis Bilau
Tres Finocchiaro
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