Wintermute_BBSMay 20

I'm turning to you people as I am at a loss with regards to the following issue:

On #rc2014bbs I use KMD to provide #xmodem transfer over the serial line (and, eventually via #wifimodem over the internet).

This works as long as you either connect with another #rc2014 using #qterm or #imp or if you use a #Commodore64 using #ccgms

But when you try to perform xmodem transfer from a modern machine (PC, Mac - it doesn't matter) using a modern terminal program (Syncterm, Qodem, TeraTerm, lrzsz etc. - it doesn't matter) the transfer begins, sending a few blocks and then gets into a NAK loop and aborts due to the error count reaching max.

So, my question to the wise, collective fedimind is: what can be the cause for such a behaviour? Timing issues?! Old xmodem implementation within KMD?! Some interference from the #Zimodem firmware?!

Any suggestions, comments etc. are welcome!

Show threadMarco Maccaferri 
@Wintermute_BBS The most common issue when transfering files from a PC is that programs expects a Telnet connection and escapes some bytes to allow to pass-through (like 0xFF). If I'm not wrong #rc2014bbs uses a plain TCP connection without negotiations so it can't understand the escape bytes. I'm not up to date with comm programs maybe there are settings to disable the telnet negotiations.
May 20 at 2:06pmWeb
Show threadWintermute_BBSMay 20
@maccasoft you can set that in the Zimodem #WifiModem firmware and currently, I have telnet translation enabled.