Donkey Kong Country Returns via Netplay Black Screen

[xplosio]

Hi,

I hope you can understand my bad english. I am not a nativ english speaker, so please be lenient with me.  

I like to play Donkey Kong Country Returns via Netplay with my frend, but everytime I start the game I have a blackscreen. The blackscreen only appears when I start it via Netplay. When I am starting the game offline it starts normally. My frend don't need to be in the Netplay lobby. Hosting a game via Netplay as a Single person won't work either (Also Blackscreen).

We tried to play Super Smash bros. Brawl and it worked without any problems. Unfortunately the error depends with the game Donkey Kong Country Return. I Hope you can help me.  

Here are my technical specs:

Stable Version Dolphin 5.0
Intel Core I5 6600K
Nvidia GTX 660
32 GB DDR 4
25000 kbit/s Network

other Threads didn't helped me with my problems:

https://forums.dolphin-emu.org/Thread-dkcr-netplay
https://forums.dolphin-emu.org/Thread-dk-returns-netplay-issues
https://forums.dolphin-emu.org/Thread-wii-donkey-kong-country-returns?page=5

(btw. I don't know where I can set "Framelimit auto")

Best regards,

Xplosio