I have had issues with ZModem over SSH over TCP when transferring within my home network, and it was escape sequences. The -e option to escape control characters fixes it.Yes, but zmodem is a bit flaky over TCP sometimes.
I thought it wasn't so much TCP, but the fact it's quite often ZModem over Telnet over TCP.
In which case, there is overlap between ZModem control sequences and Telnet control sequences, and they interfere causing transfers to go whacky.
If the terminal client and board are Telnet-aware, it usually works really well.
The issues grow with "Wifi-232" modems, and Telnet-Fossil bridges, where the sides need to agree on how Telnet control sequences are to be escaped.
Cheers,
RetroSwim
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