Problem uploading files

[Benemerit]

Hello bozimmerman

First, congratulations on the "invention". It has been wonderful to be able to follow your project and create a modem for the Amstrad PPC (and the 486), and to be able to connect to an endless number of BBS. I am writing to you because I have been trying many times to upload a file to the Amstrad BBS (amstrad.simulant.uk), but I am not able to. I have tried two applications (Kermit and Telix), and in the first I saw that the upload protocol was not supported by the BBS. But in the second application (telix) I have seen the possibility of uploading via 4 protocols: zmodem, xmodem, ymodem and ymodem-g. I have tried all 4, but there is no way to upload a binary file. In all of them the upload starts, but suddenly, randomly, it is cut off, it remains blocked, and after a few seconds it gives an error. I have tried multiple configurations and even changing the FLOW, but nothing, there is no way.

I thought I read that there is some problem with uploading files.

The board is "Lolin V3 ESP8266 ESP-12F". As I say, I connect and navigate the BBS well (many of them). I even download files well, but the upload, no matter how many times I have tried, I can never finish it successfully.

I thought I read something similar in other forums with your firmware, but I'm not 100% sure.

Does it occur to you what I might be doing wrong and/or what I can try?

Thank you!