Dear All,
I’m studying this problem more in-depth (with Wireshark), and I found that
sometimes Windows reply with ACK after 40ms at every packet. In this case, with
a file of 800kB, a packet of 1460B, we have more or less 500 packets, that
multiplied for 40ms reach 20 seconds each file.
I found that this problem is very common for Windows PC:
* https://developpaper.com/lets-talk-about-the-magical-40-ms-of-tcp/
<https://developpaper.com/lets-talk-about-the-magical-40-ms-of-tcp/>
*
https://docs.microsoft.com/it-it/troubleshoot/windows-server/networking/registry-entry-control-tcp-acknowledgment-behavior
<https://docs.microsoft.com/it-it/troubleshoot/windows-server/networking/registry-entry-control-tcp-acknowledgment-behavior>
Is there any way to solve the problem (or a workaround) by modify some
parameters of lwIP?
Thanks
Marco
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