About IPNetTunerX A modest application that allows you to optimize TCP/IP network performance under Mac OS X by tuning internal TCP/IP parameters to match your network environment. IPNetTunerX supports over 50 adjustable parameters including the TCP Window Size, Time Out intervals, Maximum Segment Size, and MTU. To keep it simple, IPNetTunerX offers a collection of presets to solve the most common tuning problems for users with asymmetric broadband connections. While not all connections require tuning, it is often possible to improve network performance significantly by using the right parameters for your connection. IPNetTunerX makes it easy to experiment and see for yourself. A Location Helper tool allows you to switch settings automatically when your network location in the Network Preferences panel changes, new interfaces come online, or even upon wake from sleep. Simple startup scripts don’t provide this. IPNetTunerX can maintain a set network MTU for AirPort Wireless as you move from one network to another. Some PPPoE or VPN connections require a reduced MTU, and IPNetTunerX supports this even when connecting via AirPort.

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