[Wine] Can't host in Warcraft III - The Frozen Throne

[Hook]

If I'm trying to host a game in Warcraft III - The Frozen Throne, noone is able to join my game although I forwarded all necessary ports correctly!

Here is an output of what wine (v 1.1.11) tells me after starting the game, logging into Battle.net and creating a game:

Code:
fixme:mixer:ALSA_MixerInit No master control found on MPU-401 UART, disabling mixer
err:ole:CoCreateInstance apartment not initialised
fixme:advapi:SetSecurityInfo stub
fixme:win:EnumDisplayDevicesW ((null),0,0x32f2f0,0x00000000), stub!
fixme:d3d:test_pbo_functionality >>>>>>>>>>>>>>>>> GL_INVALID_OPERATION (0x502) from Loading the PBO test texture
 @ directx.c / 3807
fixme:win:EnumDisplayDevicesW ((null),0,0x32f658,0x00000000), stub!
fixme:win:EnumDisplayDevicesW ((null),0,0x32f690,0x00000000), stub!
fixme:dsalsa:IDsDriverBufferImpl_SetVolumePan (0x1353a0,0x139b20): stub
fixme:dsalsa:IDsDriverBufferImpl_SetVolumePan (0x1353a0,0x139b20): stub
fixme:winsock:WSAIoctl SIO_GET_EXTENSION_FUNCTION_POINTER {b5367df1-cbac-11cf-95ca-00805f48a192}: stub
fixme:winsock:WSAIoctl SIO_GET_EXTENSION_FUNCTION_POINTER {b5367df2-cbac-11cf-95ca-00805f48a192}: stub
fixme:winsock:WSAIoctl SIO_GET_EXTENSION_FUNCTION_POINTER {b5367df0-cbac-11cf-95ca-00805f48a192}: stub
fixme:imm:ImmGetOpenStatus (0x135a80): semi-stub
fixme:imm:ImmReleaseContext (0xd0154, 0x135a80): stub
fixme:imm:ImmGetOpenStatus (0x135a80): semi-stub



All other functions of Warcraft III work fine, but hosting doesn't.

The Message 
Code:
fixme:imm:ImmGetOpenStatus (0x135a80): semi-stub

 repeats a few times as longer as the Game is created.

I could not find a solution for this issue until now... Maybe you know how to solve this....