VPN data encryption type

Hello, i get that error:
The following error occurred in the Point to Point Protocol module on port:
VPN5-127, UserName: ABC\ata. The remote computer does not support the
required data encryption type.
I've an ATA "analog telephone adaptor"
which connects to a windows VPN 2003server and i get that nice error.
i googled and i found that i MAY need to decrease the Encryption level from
128 to 40 , i'm not sure that this is the solution.
because i've another windows 2003 VPN box which had that error in the past,
but now working and i don't see some reason, i made identical configuration
but i get same error i don't know what to do ,,
any Help or redirection would be greatly apperciated

Thank you
A. Sabry

"A.Sabry" <(E-Mail Removed)> wrote in message
news:#(E-Mail Removed)...
> Hello, i get that error:
> The following error occurred in the Point to Point Protocol module on
> port: VPN5-127, UserName: ABC\ata. The remote computer does not support
> the required data encryption type.
> I've an ATA "analog telephone adaptor"
> which connects to a windows VPN 2003server and i get that nice error.
> i googled and i found that i MAY need to decrease the Encryption level
> from 128 to 40 , i'm not sure that this is the solution.
> because i've another windows 2003 VPN box which had that error in the
> past, but now working and i don't see some reason, i made identical
> configuration but i get same error i don't know what to do ,,
> any Help or redirection would be greatly apperciated
>
> Thank you
> A. Sabry
By default Server 2003 has MSCHAP v2 as the minimum authorization
protocol. If your client does not support that you will need to allow a
lower level such as CHAP or PAP which the client uses.

Hello Bill
I did try this too before but didn't work.

thank you
"Bill Grant" <not.available@online> wrote in message
news:(E-Mail Removed)...
>
>
> "A.Sabry" <(E-Mail Removed)> wrote in message
> news:#(E-Mail Removed)...
>> Hello, i get that error:
>> The following error occurred in the Point to Point Protocol module on
>> port: VPN5-127, UserName: ABC\ata. The remote computer does not support
>> the required data encryption type.
>> I've an ATA "analog telephone adaptor"
>> which connects to a windows VPN 2003server and i get that nice error.
>> i googled and i found that i MAY need to decrease the Encryption level
>> from 128 to 40 , i'm not sure that this is the solution.
>> because i've another windows 2003 VPN box which had that error in the
>> past, but now working and i don't see some reason, i made identical
>> configuration but i get same error i don't know what to do ,,
>> any Help or redirection would be greatly apperciated
>>
>> Thank you
>> A. Sabry
> By default Server 2003 has MSCHAP v2 as the minimum authorization
> protocol. If your client does not support that you will need to allow a
> lower level such as CHAP or PAP which the client uses.
>
>