Testing for MTU on a Good Line (1)
- Select your Dial-Up adapter from the dropdown box.
- If you are not connected to a TCP LAN
check the RWIN box (if it isn't
already checked).
- Press "Optimum Settings".
- Find out what MTU your ISP uses.
- Press "Change MTU" or right click and select it from the menu
- Enter your ISP's MTU in the dialog box and
click OK.
- Press "Update Registry".
- Close MTUSpeed and reboot your computer..
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