Does IPNetTuner permanently change my Windows
Registry TCP/IP Settings?
Only when you apply any new settings.
In order to change the TCP/IP settings for any device, the device
parameters must be written to the Windows Registry, then the device
must be re-initialized. The device drivers then read the settings
from the Windows Registry upon initialization.
With Windows 2000 and Windows XP, this initialization can be invoked
directly by IPNetTuner. For Windows 95, 98, NT and Me, you must
reboot Windows in order to invoke the new settings.
I use IPNetRouter to share my Internet
connection. Do I only need to run IPNetTuner on my IPNetRouter machine
OR do I need to run IPNetTuner on all my client PCs?
You should run IPNetTuner on ALL your PCs (both the IPNetRouter
machine and each PC client). When you run TCP Tests on each machine,
you will clearly see this.
TCP Parameters influence each and every TCP connection. A router,
such as IPNetRouter, only forwards datagrams. It does not modify
or have any effect on the reliable end-to-end delivery and receipt
of datagrams associated with connection oriented services such as
TCP. Hence we must modify the TCP stack of every machine in order
to affect the machine's performance.
I am using a hardware router to
share my Internet connection. Can IPNetTuner still help me increase
the performance of my PCs behind my hardware router?
Absolutely! As mentioned above, TCP Parameters influence each and
every TCP connection. Any router, even a hardware router, only forwards
datagrams. It does not modify or have any effect on the reliable
end-to-end delivery and receipt of datagrams associated with connection
oriented services such as TCP. Hence we must modify the TCP stack
of every machine in order to affect the machine's performance.
What is the difference between
a Link Rate test and a TCP Rate test?
Please see our Test
descriptions for more information on these two tests and how
Why when I perform a TCP Test against
some servers I do not note a performance difference between the
default Windows settings and my tuned Windows settings?
The throughput from some servers can be limited by other things
other than TCP transport parameters. Specifically:
- the server may be overloaded (not enough CPU power)
- the server may be limited by the speed of its Internet connection
- the page you are downloading (testing) is too small. You should
test against a page at least 20 Kbytes if possible.
What parameters should I modify to improve
performance with my connection?
We need to hear from you as to what parameters work best for your
specific connections. Please email your parameters to: .
Please describe your Internet connection type with your submission.