connenction closed by remote host (gproxy / eurobattle.net)

Hello,

I sometimes get disconnected from bnet.
It happens randomly and I didn't success to find out when, how or why it happens. I can play for a 2 weeks normally and then get disconnect in a 3 games in a row.
Examples: disconnects me from lobby, channel, game ... random times (start of game, 25th minute of a game ...)
After disconnect I cant even connect back to bnet, need to restart w3.
In gproxy log is this:
[TCPSOCKET] closed by remote host,
so I suppose it isn't my fault.
Any idea why this happens or better how to solve it ?
Thanks.

Eurobattle.net installer with gproxy, w3tft - Czech lang., win 7, firewall off

I am not sure... but do you have a router or a firewall ?

have you c++ and framework, to correct run gproxy?