using outlook 2003 - I can't send any attachments larger than 100.

[Paddymaw]

I am using outlook 2003 on several computers all set up identically, but
cannot get one laptop to send any message with an attachment larger than
100K. All the others send fine, but not this one! Any ideas??

 

[neo [mvp outlook]]

Is it safe to assume you have tried a different ethernet cord and/or another
port on the hub.

 

[neo [mvp outlook]]

You might try adjusting the MTU on this machine. Assuming that you are
working with a Windows 2000/XP/2003 machine, you would go to...

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\<long
alpha-numeric folder name>

The long alpha-numeric folder name will contain data that is right for your
network card. (Look for the IP address that the machine currently has.)


create a new DWORD value named MTU and set it to a value lower that 1500.
(e.g. Try 1492 which is standard for PPoE dsl accounts. I have never had to
go less than 1460.)

After you set this value, you will need to reboot.