Need Help! Artnet to ws2812 via Adafruit Neopixel doesn't work

[benjizverev]

Hello,
I want to controll WS2812 Stripes via Artnet.
I bought a Arduino Mega and W5100 Ethernet shield for it and i had no problem to controll the stripes via the adafruit strandtest example or to make a Webserver. But when i load the code for ArtnetNeoPixel first of all the test is running and my stripe lights up in (R, G, B) but i can't controll it via dot2 or Led Stripes Studio. I have the same ip exept the last number and also tried to ad ethernet.init(10) ; witch i needed to make the webserver (because my ethernet shield has a sd card slot). (I pluged the shield with a rj 45 cabel in my pc) For the led stripe studio software i tried a 192.168.1.254 ip and by dot2 2.x.x.x and also 192.168.178.254 (Subnet 255.0.0.0).
Would be nice if someone could help