Can't authorize with TCP connection

[guilhem-fry]

When I put app.connectionType to 'TCP' (commented by default), I can't go further than entering my password.
Right after the input, after having entered the pw, I get the loop: 'Authorization on going, wait few seconds.. \�|�/�-�\�|�/�-�\�|�/�' etc.

How to use it with TCP then ?

I need to receive a msg absolutely instantly via the TCP tunnel.