Perform HTTP operations while maintaining an active MQTT connection

RE: Perform HTTP operations while maintaining an active MQTT connection

dejans — Fri, 04 Jul 2025 08:12:57 GMT

Hi,

Limitation is related to the number of TLS handshakes. Having a single TLS handshake while maintaining an active MQTT connection should work fine.

Best regards,
Dejan

RE: Perform HTTP operations while maintaining an active MQTT connection

Tom.Fu — Thu, 03 Jul 2025 14:15:01 GMT

Hi Support Team

So HTTP can perform TLS handshake and HTTP GET and POST can be performed by AT commands after TLS handshake for MQTT and while active MQTT connection is maintained, right? Many thanks.

RE: Perform HTTP operations while maintaining an active MQTT connection

dejans — Thu, 03 Jul 2025 08:42:15 GMT

Hi,

You can look at modem firmware release notes for limitations.
Among other things mentioned there is that one TLS handshake is supported at a time. If both connections use TLS, they can be open at the same time but they cannot perform TLS handshake at the same time.

Best regards,
Dejan

RE: Perform HTTP operations while maintaining an active MQTT connection

Tom.Fu — Thu, 03 Jul 2025 01:46:02 GMT

Hi Support Team

We just want to perform HTTP GET and POST while active MQTT connection is maintained. Many thanks.

RE: Perform HTTP operations while maintaining an active MQTT connection

dejans — Wed, 02 Jul 2025 14:20:34 GMT

Hi,

Can you elaborate on your use case and application?

Which HTTP operations do you want to perform while active MQTT connection is maintained?

Best regards,
Dejan