Problem when we are using ESP32 & HTTP & TP-Link router

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1

Hello, I’m working for the project which uses ESP32-S3 with AWS IoT core.

Now we are facing a problem in HTTP.
When we do a HTTP GET, sometimes ESP cannot receive any data(0Byte).
This is a log line when the problem occurred.

HTTP: Response not received: Zero returned from transport recv: totalReceived=0

(This may output from the Espressif library)

It seemed to occur only when using a specific WiFi router (TP-Link deco S4), and did not occur with any other router as far as I tried.
And there is no problem when accessing the same URL from a PC or smartphone with that TP-Link router.
Do you know there are any other cases where similar problems have occurred?

Sorry if this is not the appropriate forum.

2

Welcome to the forums and thanks for posting @MNKT_NakaG. Can you tell me a bit about what libraries you’re using for the communication? We provide a HTTP library (coreHTTP) and Espressif provides a solid TLS library (esp-tls).

Also - are you able to provide some additional logs for context here? Your description and error makes sense but I’m not sure the context of how it arose.