VPN XP Problem

[grich357]

I have a laptop that has XP Professional on it. When I connect the machine to my router via an ethernet cable and connect to my company's VPN I have no problems using Outlook or accessing folders. The problem comes when I connect to my router wirelessly, I can launch the VPN and connect but when I try and launch Outlook I get a message cannot find mail server. This only happens when I connect wirelessly. Now the piece that causes me to get even more confused is I can connect wirelessly with another machine I have that uses Windows ME. This machine will connect through VPN and Outlook works fine. The only difference I see between the two is the ME machine asks for a windows networking password after connecting to the VPN and the XP machine does not. That is the only difference I see between the two machines and the fact that the ME machine works and the XP does not.

Is there a setting I can change on the XP machine to allow it to work wirelessly with the VPN and be able to launch Outlook?

Thanks

 

[deeno]

This is just an idea and may not correct your problem, but if I were you I'd try to adjust your MTU setting. You can do this either by editing the registry or by using a small probram called DrTCP. You can find that program at this link:

http://www.dslreports.com/front/DRTCP021.exe

That program simply modifies your registry for you with the values you enter so that you don't have to dig around your registry yourself. Just download the program, run it, and when the DrTCP window comes up, select your adapter from the drop down box in the Adapter Settings area. Once you select it, type 1392 in the MTU box, click save, exit the program, and then restart your computer (you need to restart for the setting to take place). Then try your wireless VPN connection again. Hopefully it will work. If not, you can try to lower the MTU even more, maybe to around 1000, but if it doesn't work with that then go ahead and put it back up to 1392.

Anyway, that's what I'd try since you already know everything with the VPN is setup correctly. Let us know if that works!

deeno

 

[grich357]

Deeno

Tried your suggestion regarding MTU setting with you luck. As I mentioned in the above post the VPN is connecting fine but I cannot reach my folders nor the email server. Any other suggestion would be appreciated.

Thanks