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VPN and PPPoE

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by pg6923

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Has anyone run into this problem?
We have set up a VPN and users on Cable modem can log on from home move around the network, send/receive e-mail with out problem.
A user on DSL (PPPoE) can connect and move around the network with no problem and also receive e-mail. But when he tries to send an e-mail it locks up and wont send. We have narrowed it down to either the fact that its PPPoE or something in his router.
We have messed with MTU Speeds and everything and still cannot figure this little bug out.
He is on a Windows XP Laptop connected to a wireless LAN over a wireless Linxsys router.
If anyone can help out with this one it would be greatly appreciated.

Thanks in advance!

Paul

1 reply

by kozmo

First I assume you router at home is set to allow ipsec to pass through. Second is for the wireless nic card, you need to set the MTU to 1210.
Within regedit navigate to HKey_Local_Machine\System\CurrentControlSet\Services\Tcpip\Interfaces\ {you should see various mac addresses here}. At this point you will have to look at the different mac addresses and choose the one you are using for wireless. It is a little easier than it appears. You should see an actual ip addresse that coincides with your specific network settings. Once you find the right one you need to add a dword value. You do this by clicking on edit- new ? dword value. Name it MTU. Now you need to set the value. Double click on the MTU setting you just created. Clickon the decimal button and edit the value to read 1210.

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