Issue with Establishing MQTT Connections on Ports 443, 55443 for Solace Broker (WSS, TCPS)

I am currently working on integrating an MQTT client with the Solace Broker, using the CocoaMQTT library for iOS. While I am able to successfully establish connections, publish, and subscribe to topics using port 8883, I am facing issues with ports 443, 55443 (which I am attempting to use for WSS and TCPS protocols).

What I’ve tried:

• Ports:
  • Port 8883: Successfully connects and works for MQTT over SSL.
  • vbnetCopyCocoaMQTT(debug): socket disconnectedDisconnected with error: Socket closed by remote peer
• I have attempted this with both CocoaMQTT and MQTT5 libraries, but the issue persists.

Specific Questions:

1. Is there any specific configuration needed on the Solace dashboard or Solace broker for using ports 443 (WSS) or 55443 (TCPS)?
   Could there be any protocol-specific configuration or adjustments I need to make on the Solace Cloud dashboardto support these ports for secure WebSocket (WSS) and MQTT over TCPS?
2. Solace Documentation or Guidelines:
   Is there any documentation available for Solace that outlines the necessary configurations for different protocols(WSS, MQTT over TCP, etc.) or specific client-side configurations for these ports?
3. TLS/SSL Configuration:
   For the secure connections (TCPS, WSS), I have made attempts to configure the MQTT client with SSL settings, but still encounter issues. Could there be any SSL-related configuration settings on the Solace platform that I am missing? For example:
   • Does Solace require a specific SSL/TLS certificate configuration for these ports?
   • Should I disable certain SSL validation parameters when using these ports, especially if I’m testing?
4. Error Troubleshooting:
   What other factors could be causing the Socket closed by remote peer error? Is there any way to get more detailed logs from Solace or on the client-side to troubleshoot this further?

Setup Information:

• Solace Cloud Broker: [Solace Cloud Broker URL]
• MQTT Client: CocoaMQTT / MQTT5
• Port Used:
  • 8883 (works fine for SSL/MQTT)
  • 443 (for WSS)
  • 55443 (for TCPS)

Conclusion:

I would appreciate any insight or pointers towards troubleshooting this issue, especially regarding configuration requirements on Solace for different MQTT protocols (WSS, TCPS) and SSL/TLS settings. If there are any additional considerations for using these ports, I would be grateful for your suggestions.

Thank you in advance for your help!