[rosebroger]

Thank you for reply.

Does that mean the port is not available to be listened to?

How can I find out which ports can be chosen in this case?

[rosebroger]

Right, you’re right

Before using the hopen command, it is necessary to open the port listening with the p command:

p 5001       /system[“p 5001”]       /q.exe -p 5001

hopen 5001

Now work

Thank you to all for answer