Windows 95/98/ME/NT 4.0

Windows 95/98/ME/NT 4.0

For Windows 95, 98, ME and NT 4.0 - use the Freeware GUI utility DrTCP. It is available for download at http://www.dslreports.com/front/DRTCP021.exe. Select the LAN Adapter from the Adapter Settings dropdown box. In the MTU field, type "1400", then click Save, and click Exit. Reboot the PC, and the MTU will be set to 1400. Re-try some the applications that were previously having problems.

NOTE: DO NOT USE DR. TCP ON WINDOWS 2000 & WINDOWS XP.

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Windows XP MTU

The Windows built-in PPPoE client has a default MTU of 1480. To change the MTU, please refer to the Microsoft Knowledgebase: http://support.microsoft.com/default.aspx?scid=kb;en-us;283165 and http://www.microsoft.com/windowsxp/pro/using/howto/networking/pppoe.asp

Important Note: Changing the MTU in Windows XP requires use of the Registry Editor. Please heed the warning on Microsoft's site regarding use of the Editor. Expedient cannot be held responsible for any problems or damage that occurs as a result of using the Registry Editor incorrectly.