Multiuser XDebug with DBGp proxy

Multiuser XDebug with DBGp proxy

In my office there are two programmers, working on the same project. We
want to use the debugger, but in the php.ini I can only set one
remote_port (9000)
This is why dbgp proxy borned. I worked based on this tutorial:
http://matthardy.net/blog/configuring-phpstorm-xdebug-dbgp-proxy-settings-remote-debugging-multiple-users/
I installed it on the server, and started the proxy with this command:
./pydbgpproxy -i 0.0.0.0:8999 -d 9000
The IDE settings:
PHPStorm 1:
XDebug port: 9001
DBGp proxy IDE key: PHPSTORM
DBGp proxy Port: 8999
PHPStorm 2:
XDebug port: 9002
DBGp proxy IDE key: PHPSTORM2
DBGp proxy Port: 8999
I registered both of the IDE, and I've got message: successful
The result of the debugging test: PHPStorm 2 is working (this is
registered first), but PHPStorm 1 is not
Port 9001 and 9002 are forwarded to the computers in the router.
So this is my problem, I hope you can help me.