Hello,
Sorry for asking a non-Keil related question. I am using lwIP on a LPC2478 to quickly send a lot of data to a server. When I connect the product to a VPN located far away (New Zealand...) often some characters are replaced by lwIP device drive due to some race condition that I haven't identified yet (that does not happen when data is sent from less distant locations). I have seen from Wireshark logs that the corrupted frames are marked as having a bad checksum - that is no surprise - but the receiving end never kicks in the TCP re-transmission mechanism (it rather acknowledges the corrupt frames!). Any idea what is going on here?
OK I get it, thanks.
Or the ZWP packets are incorrectly handled at the sender, that is LwIP I guess.