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1. You have to tweak the registry. Remember NTS has limited the MTU to 1454, while the PPPoE Maximum is 1492. Although this small increase will do you no good if you don't actually have an MTU greater or equal to 1454, it still widens your MTU's upper bound.
Go to Start/Run and type in "regedit" (no quotes), then click down through here:
(Where "n" is a number and the registry directory for your Network Telesystems PPPoE Adapter (NTSP3) adapter.) It's the one with the actual MaxFrameSize string (this is not the one you edit). Now the thing that you want to modify is the "max" string in that 000n directory. Change that to 1492. Now reboot.
(To be sure that you put the settings in the correct places, go to: Here and download some pictures of the registry.)
2. OK, now that the upper limit on your MTU is good, it's time to set it. Go to:
Network Telesystems Enternet PPPoE Adapter (NTSP3)
Click on the advanced tab
Do you see that thing called "MaxFrameSize"? Change that to 1492.
For Win2K/XP users, this appears to be the proper place to set MTU:
MaxFrameSize = "1486"
- where n = the key containing this entry:
DriverDisc = "Efficient Networks..."
1486 appears to be the maximum MTU settings for Win2K/XP using Enternet software. See this thread for more details.
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