Re: [lwip-users] Browser finishes every HTTP POST request with a ACK RST, why ?

[Roland Winistörfer]

    Does nobody have the time to give me some advise where the problem
    could be ?
    
    At least to understand the main problem I need some help.
    In the Wireshark capture file pc1_not_working.pcapng each
    frame with [RST,ACK] looks different in the capture file pc2_working.pcapng
    ([FIN,ACK] which I believe is correct).
    
    Any help would really be very welcome.
    
    Kind regards
    Roland

Am 12.09.23 um 08:51 schrieb Roland Winistörfer:

Hi

I'm using lwIP 2.13 with the httpd web server found in the contrib part of the lwIP. Now i see some problem with POST requests on some Windows 10 clients. The PC seems to close the connection after each POST with a RST,ACK (please see the Wireshark logging pc1_not_working.pcapng in the the attachment).
It seems that not all Windows PC have this problem and the communication works like expected (please see the Wireshark logging pc2_working.pcapng in the the attachment). And it is not related to any kind of browser, it seems really only related to different PCs (with Windows OS).

The lwIP implementation uses FreeRTOS and all other services (TFTP, Socket server) are working without any problems.

Does someone have an idea what the problem could be ? Any suggestion would be very helpful.

Kind regards,
Roland

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