Ckecking the MTU Value of the DSL Connection

If internet sites are shown delayed or very slow the reason may be the MTU value,
which by default is 1480 with WindowsXP.

You may check this in the DOS prompt (Start - Execute (Run) - Input: cmd)

Type the following input:

ping -f -l (MTU minus 28) (web page which causes difficulties)

with MTU = 1480 e.g.:

ping -f -l 1452 www.rgross.de

When an error message is shown you should optimize the MTU value.
Go to the website http://www.dslreports.com/tweaks, and start the
Tweak Tester II at the bottom of this page.

Press:

tweak tester II --> start --> results

Enter your data: type of connection, transfer rate, operating system, mode, e.g.:

DSL | 2000 | XP | winXPppoe

follow the instructions in the result window, maybe you have to use the programm Dr.TCP (drtcp.exe).
There's no need to install it. Just download and start it and insert the values of the result window.


Good Luck !