Why fails connections telnet?

When attempt to make a telnet to my Mikrotik, I have removes the following error to me:
Trying…
Connected to XX.XX.XX.XX
Escape character is ‘^]’.
telnetd: All network ports in use.
Local flow control off
Connection closed by foreign host.

I have a 2.7.13.

How i can see the ports in use, restore it or anything that let me use the telnet port again

I’ve got the same situation with Mikrotik 2.8.17
I’ll try to install 2.8.18 and see what happened.

The message of error that it saw (“All network ports in use”), it seems to be a message of Linux, that warns that the demon telnetd cannot receive more connections.
I solved it reboot th MK, and adding access list to the telnet in case it was cause of DoS.

But he would be well knowing something more of possible bug.

sorry by me spanish-english. I´m from Spain.

:confused: