android connect to nodejs websocket server

hello,

I am using this nodejs websocket library: GitHub - sitegui/nodejs-websocket: A node.js module for websocket server and client

I have connected a lot of external IOs, Rasperries, android, iOS, http whatever woirks great.

No I tried to connect an arduino with ethernet connection to this system.

For example I checked this lib: GitHub - brandenhall/Arduino-Websocket

I can connect, but I can't read data send from the server. Ok, I tested a few of the libraries arround...

Can someone recommend a good library for websockets.

regards.