I have no idea what the cause of the issue is, and since there have been no replies, it appears no one else does too. If you have reinstalled PunkBuster, and are still receiving the issue, you must submit a ticket to EvenBalance.
If they do not reply after a considerable amount of time, bump the ticket.
Streaming is different; it is our issue and not an EvenBalance issue; hence you will get more support from both the staff and all the other forum members who have their own server(s) streaming.