Iam using BT4 R1 in a persistent USB drive and using it in three machines.

DELL Inspiron 1525
DELL Latitude 630
There is no problem in the first two machines.

But in the Latitude, there is a UDP multicast traffic followed by RTP traffic (sound 16 bit ) to the same multicast address. (For eg) >

The result is that BT4 is not quiet and it is quite difficult to work with wireshark.

I found a reference to such a problem in the below mentioned URL.


But I do not find pulseaudio in the BT4 distribution.

Apart from BT, I have installed Nessus but this does not start by default. All observations are without Nessus running.

Any help/suggestions in this matter is highly appreciated.