Communication between 2 QNX pc's

[maschoen]

Well, there are two possibilities. Either TCP/IP is not working, or the ftpd/ftp utilities are not working. To determine which, you could write a simple client and server that uses the socket library to try to connect. If it works, you know TCP/IP is working and the problem is with the ftp utility.

If other utilities, such as telnet work, then you know it is the latter. In that case it is probably some type of configuration issue. ftp is probably going to use the qnx password file. I hope you are not trying to connect with user root. That typically is disabled with ftp.