No data :(

[0wwafa]

I tried both from windows and linux and I get nothing. The port opens and I read
Telnet connection from: ('192.168.1.100', 5975) in the console
But no data comes in or out.
and I get

Trying 192.168.1.114...
Connected to 192.168.1.114.
Escape character is '^]'.

nothing else.

My boot.py is:

import network
sta_if = network.WLAN(network.STA_IF); sta_if.active(True)
sta_if.connect("MYSSID","********")
sta_if.isconnected()
import esp
esp.osdebug(None)
import utelnetserver
utelnetserver.start()

[0wwafa]

Weirdly, if I connect to the COM PORT and type something I can see it in the telnet session.