Am I allowed to use Battleping?
If they consider Battleping (or any other proxy tool) a malicious 3rd party program, then they have to include in that list every firewall and AV software.
Except battleping is completely different and your comparison is bad.
how so? all it does is reroute traffic through certain proxy-server to (possibly) reduce latency without scanning or tampering packets/client. It is more like a system tool (like FW or AV as i mentioned) than 3rd party gaming tool to give player unfair advantage over other players. Same goes for TcpAckFrequency/MSMQ fix (also known as “Leatrix latency fix”) – it doesnt change anything related to game or client, but can enhance gameplay a lot by reducing latency/lag.
Kinda sounds like your having a routing problem with your ISP. If that is the case contact your ISP support.