Feeder question

Why i can’t add a second feeder? My sharecode is A3. I register my secondary receiver (http://flightaware.com/adsb/register).
In statistic page i have only one feed.

There is no data being sent by that share code. Be sure that it is transmitting properly first.

I have 2 PP in one LAN - is this a problem?
One on west side of building (l3) and one on east side (A3).