Punkbuster kicking me for "No Packet Flow"

This is on the verge of driving me insane.

Whenever I join a game I get kicked after ~60 seconds. I get the following error message:

Game disconnected: you were kicked by PunkBuster. Stated reason: PunkBuster kicked player 'VIGGOWL' (for 0 minutes) ... No Packet Flow

Now, this is the list of the things I've tried to fix the problem.

• Reinstall BF3
• Reinstall PB
• Update PB
• Reset computer to earlier restore point
• Restart router & access point
• Set priority for PnkBstrA and B to high
• Disable my firewall
• Disable my AV
• Only play by wire
• Only play by wireless
• Allow the PnkBstrA & PnkBstrB services in the firewall
• Set their inbound traffic to private, public and domain

Now, I think this is getting a bit old. I'm not a complete moron, and I'm studying computer engineering so this is kind of my field... 

What do I do???

Thanks in advance.