ncat is bit slow, corrupts and stops sending data for no reason

[rndbit <me () rndbit net>]

Hello,
I am trying to arrange myself a rdp connection to a firewalled machine.
Idea is to have a 3rd party server with public ip act as an intermediary
between rdp client and firewalled computer. It works like this - ncat on
firewalled computer connects to rdp on 3389 port, then spawns a
bidirectional connection to a public intermediary server. When ncat on
public server gets an incoming connection it starts to listen on port
7777 for incoming rdp connection. When someone connects - two ncat
instances join rdp client and firewalled machine via ssl tunnel.
Something like this:


It sure looks and sounds cool (at least to me), however there is a catch:

Sometimes error pops up when connecting, sometimes i get to windows
login screen and it pops up after entering credentials and pressing [Ok]
to log in. RDP is working, but if it did not terminate instantly - it
would be really awesome. Any idea how could data get corrupted? There
aint much space for my errors so i guess it must be ncat misbehaving..
Chasing mice when its not the time for games or something :|

Another thing - if we take --ssl out of equation suddenly it does not
error, however connection is still rather slow and rdp client just
freezes before it finishes fully loading desktop. RDP client does not
notify of disconnect though, it just does not do anything.

I tested both development and stable versions - same. Any clues guys?

-- 
rndbit
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