DSLReports Tweak Test Problem: how do I set "Path MTU Discovery" to On?

[Pete]

I get the following message in the Tweak window:
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* Your Path MTU Discovery is OFF
Max sized packet from you 576
(Which is less than your advertised MSS)
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I've already set all MaxMTU references to 1500 (changed from 576). What do I need to change to fix this?

 

[zogg]

Im not sure about cable/dsl but I know that the Max MSS is supposed to 30 less then Max MTU for v.90 modems. Why dont you go to http://speedguide.net and get the mtu patch for dsl/cable. They have a few choices to choose from. They also have a way for you to go back to original settings if it makes it worse.

 

[Pete]

Thanks for the link, zogg. I have 608/128 ADSL, and I'm not sure which patch to install, PPPoE or not:

sguide_tweak_98.zip (updated 04/25/00) - Generic Registry patch for Windows 98/98SE (includes a fix for 98SE ICS, as well as corrected SackOpts location). This is an updated version of mtupatch98, it's an .inf file that tweaks the Registry and adds all the optimum settings for Cable modem, DSL, or any similar broadband connection. To install, extract the file, then just right-click and choose "Install" from the Pull-down menu. You need to reboot for changes to take effect.

sguide_tweak_98_pppoe.zip (updated 04/25/00) - Registry patch for Windows 98/98SE using PPPoE. (includes a fix for 98SE ICS, as well as smaller MaxMTU, corrected for PPPoE). The patch adds all the optimum settings for Cable modem, DSL, or any similar broadband connection that has PPPoE implemented. To install, extract the file, then just right-click and choose "Install" from the Pull-down menu. You need to reboot for changes to take effect.