Noise coming out of Airport Speakers once Airfoil installed

Hiya,

I installed Airfoil and Reemote Server today in order to make all the audio work with my Aiport speakers.

It worked fine through Safari for about 10 mins and then I started getting this white noise sound coming out of the speakers.

I am trying to figure out why.

It stills plays whatever it is (mixcloud, youtube ) but one the top of the noise.

It works fine from my Iphone Itunes but the problem is from my Mac.

Any help?

Thanks