Download Dr.TCP - It's a freeware program that changes your TCP settings without having to mess with the registry. TCP Receive Window: 6432 Windows Scaling: Default Time Stamping: Experiment with this setting or leave at Default. Selective Acks: Default Dial Up (RAS) MTU: 576 Path MTU Discovery: Default Black Hole Detection: Default Max. Duplicate ACKs: Blank TTL: Blank Adapter settings: Dial-Up Adapter or Network Card MTU: 576 Click save and then