Php – Setting up IntelliJ Idea remote debugging with XDebug

I have been trying to set up remote debugging in IntelliJ Idea and Xdebug for several days in a row with no success.

I have a Windows 7 host and VM VirtualBox with Windows XP as a web server. It has WampServer installed with Apache, PHP and Xdebug.

Xdebug is configured correctly:

Summary
Xdebug installed: 2.2.3
Server API: Apache 2.0 Handler
Windows: yes - Compiler: MS VC9 - Architecture: x86
Zend Server: no
PHP Version: 5.4.16
Zend API nr: 220100525
PHP API nr: 20100525
Debug Build: no
Thread Safe Build: yes
Configuration File Path: C:\WINDOWS
Configuration File: C:\wamp\bin\apache\apache2.4.4\bin\php.ini
Extensions directory: c:\wamp\bin\php\php5.4.16\ext

Web server and PHP work Ok, without any issues.

Here are my steps of setting up the remote debugging in Intellij:

File->Settings->PHP->Servers
enter image description here

Run/Debug Configurations:
enter image description here

php.ini xdebug section:

[Xdebug]
zend_extension = "c:\wamp\bin\php\php5.4.16\zend_ext\php_xdebug-2.2.3-5.4-vc9.dll"
;xdebug.profiler_enable=1
xdebug.profiler_output_dir="c:\wamp\tmp"
xdebug.remote_autostart=1
xdebug.remote_enable=1
;xdebug.remote_handler=dbgp
;xdebug.remote_mode=req
xdebug.remote_port=9000
xdebug.remote_host=192.168.56.1
;xdebug.idekey="intellij"

Those line commented are ones I already tried to turn on/off without success.

When I start debugging session, from IntelliJ, it opens a browser with address "http://192.168.56.101/index.php?XDEBUG_SESSION_START=some id", while debugger starts waiting on the same id.

What I have already tried:
– disable / tune firewalls
– change the default listening port
– set up "Remote debug configuration" template with manual starting debugger from browser
and many others.

I used a sniffer to make sure that my host receives something on port 9000: it indeed receives 62 bytes from the server:

enter image description here