Clint,

If you paste the following into notepad and save it as a reg file and enter it to the registry I am told it will help with PPPOE. I am on dialup so I cannot say if it works, I'm told it does by some XP users on DSL.
<!snip>
Windows Registry Editor Version 5.00


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NdisWan\Parameters\Protocols]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NdisWan\Parameters\Protocols\0]
"ProtocolType"=dword:00000800
"PPPProtocolType"=dword:00000021
"ProtocolMTU"=dword:00000578

<!end snip>

Peter Kaulback

In the hour of 11:49 AM 21/03/2003 -0600, [EMAIL PROTECTED] spoke this:
I am REALLY confused here with MTU settings in XP.  Ben said XP
has no MTU settings in the registry and a key had to be added.
http://www.winguides.com/registry/display.php/280/

Then I asked:
------------------
I notice they don't list a figure for routerPPPoe.
Ok...so what is the default value?

I don't understand that page.  It says "find the key below", and
there is no key below.  Do they mean this key, or is this what
you ADD?

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\
Parameters\Interfaces\[Adapter ID]]

Now I have that key, but under Adapter ID I have 3 entries.  Do
they mean to add the new key immediately after that "adapter ID",
so when it's highlighted you see the new entry in the right pane?
-----------------------------

I still need to know about the difference in those settings with
a router PPPoe.  It's usually less than 1492 with a router.  I
know the formula for finding the optimal MTU, but it might not
work with XP.  So, before receiving a reply to that question
above, I right clicked the right pane AT THAT KEY ABOVE,
and added this:

Value Name: MTU
Data Type: REG_DWORD (DWORD Value)
Value Data: Default = 0xffffffff

(Is that the correct place to add it?)  I had to figure out the
conversion from Hex to Dec with a scientific calculator.  You
cannot simply enter an MTU setting, you must enter Hex to Dec
conversion equivalent.  Meaning, if you want 1500 MTU, at the
Dword you must enter 5DC.  Now, am I doing that right?
Because I went and tested my MTU again, and it's STILL saying the
SAME MTU setting as before!  Even stranger, from what I was able
to find out, XP has a default MTU of 1480, yet I'm told mine is
1440 here http://forums.speedguide.net:8117/  and at
http://www.dslreports.com/tweaks !  If this method of changing
it above IS correct, why is it not working?  If it's not correct,
then how exactly is the MTU changed?

Could the default MTU have been changed somehow by my NIC (Intel
Pro 1000MT), or my router (DLink DI-704)?  I'm on an ADSL
connection.

Does anyone have any idea why I can no longer connect to my
router's control panel?  This is that webpage looking interface
where you change settings.  All you do is enter the IP in the
address bar for the router, and the interface comes up.  Now, I
get 'the page cannot be displayed', yet the title bar shows the
correct name, DI-704!  Could this have anything to do with not
being able to change the MTU (IF that is I was doing it correctly
above)?

I also saw this:  "As of 10/15/01, there is no way known to raise
MTU in WinXP from 1480.  This issue is seen only by WinXP users
who are connecting with the built in PPPoE connection software*.
If you change to RASPPPoE, or use a router instead, your MTU
should then default to 1492. RASPPPoE is popular, free, and
less problematic than WinPoet (another choice).

This small difference (12 bytes) in MTU is negligible however,
and should cause no concern. Check back from time to time though
for a "fix"."

This too states 1480, yet mine is 1440, and even now after
downloading an "MTU tool", I STILL cannot change it!
*How do I know if I used this connection software they speak of?
I was not aware of it.  I didn't have to configure ANYTHING.  All
I had to do was install the NIC drivers, and that was it.  No
settings had to be checked.  Immediately after the NIC's install,
I was online.  Evidently, I didn't use the software. ?
-Clint

God Bless Us All
Clint Hamilton, Owner
Want to exchange links with us?
http://OrpheusComputing.com
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