Hello,
as already mentioned I try to play Final Fantasy: Crystal Chronicles via Dolphin and 2 VBA Emulators. I've got a BIOS file for my GBA.

This is how far I got until now:
1. Start FF:CC
2. Dolphin: Port1 is Standard Controller, Port2 is GBA
3. With my GC Controller connected to my PC on Port1 I start a new Game and select "Multiplayer-Mode"
4. Start VBA twice
5. Load in one of the VBA the GBA BIOS file
6. The first GBA connects to Dolphin and is ready, so that I see the background of FF: CC on my VBA Emulator
7. Load the other BIOS file with the second VBA, it starts but does not even try to connect to Dolphin?

Some information:
Emulator:
- Dolphin 4.0-6112
- VBA

Dolphin Configuration:
- no plugins

VBA Configuration:
- Pause when inactive - unchecked
- Options/Gameboy Advance/Use BIOS file - checked
- Options/Link/Type -> Gamecube
- no plugins


Hardware:
Processor: Intel Core i7-5820K 6x 3.30GHz, with Hyperthread

Mainboard: GigaByte GA-X99- UD3, Socket 2011-3, ATX, DDR4

RAM: 4x4GB

Graphiccard: Radeon R9 280X, 3GB GDDR5, DVI, HDMI, 2x Mini DisplayPort

Power adapter: Super Flower Golden Green HX 80Plus Gold - 550 Watt

Operating System: Windows 7, 64-bit


Questions from [READ ME FIRST]:
Which plugins you're using?
- none

Have you tried an alternative ISO/ROM of the same game?
- yes

Or have you tried any other emulators?
- no, because I heared Dolphin is the best.

What I already tried to fix it:
- using DSP-LLE Dumps(dolphin freezes when I load the BIOS for my VBA and VBA freezes with annoying repeading sound)

I am able to play until now every game withoput FPS drops, always 59-61. So I dont think the hardware is problematic.
Can someone help me so I can play local coop FF: CC? Please!
A step by step instruction would be nice!