Vigor reliability question

I have a Vigor 2600plus with firmware 2.5.6_UK

About 2 months ago I configured a VPN to another router using a dynamic IP
(via its DDNS name). The VPN is configured to be up continuously. Since
then the V2600plus has been unreliable in its connection to the internet

About once every 10 days it will drop its PPPoA connection but show that the
ADSL service is still OK with typically: up speed = 704,000, down speed =
5,760,000 SNR margin = 10.0dB and Attenuation = 35.0 dB. Prior to
configuring the VPN the connection would remain up for many weeks at a time;
and if it dropped, it would re-connect automatically.

It is sufficient to break and remake the connection to the phone to force
re-negotiation.

I am aware that the most recent firmware is 2.5.9_UK but the release notes
do not suggest that Draytek have made any changes which would correct this
issue.

The ISP is Demon.

Has anybody seen anythng similar? Is the new VPN likely to be the cause of
the problem, or is it chance?

TIA

--
Graham J

Graham J wrote:
> I have a Vigor 2600plus with firmware 2.5.6_UK
>
> About 2 months ago I configured a VPN to another router using a
> dynamic IP (via its DDNS name). The VPN is configured to be up
> continuously. Since then the V2600plus has been unreliable in its
> connection to the internet
> About once every 10 days it will drop its PPPoA connection but show
> that the ADSL service is still OK with typically: up speed = 704,000,
> down speed = 5,760,000 SNR margin = 10.0dB and Attenuation = 35.0 dB.
> Prior to configuring the VPN the connection would remain up for many
> weeks at a time; and if it dropped, it would re-connect automatically.
>
> It is sufficient to break and remake the connection to the phone to
> force re-negotiation.
>
> I am aware that the most recent firmware is 2.5.9_UK but the release
> notes do not suggest that Draytek have made any changes which would
> correct this issue.
>
> The ISP is Demon.
>
> Has anybody seen anythng similar? Is the new VPN likely to be the
> cause of the problem, or is it chance?


Dunno specifically, but we ran a Vigor for about two years without fault
using a VPN to another site, using Demon as ISP (fixed IP address, £25/mth
package (price just dropped, but not signed up as want flexibility to change
ISP if necessary)).
The VPN tunnel was all done from the Vigor and connected "on demand" if
there were packets from our home lan asking for addresses at the far end.
Far end never needed to initiate connection.

We never experienced any drops in speed or unreliability.


Due to change in employment, the Vigor has gone back, and we're now on a
Linksys router.

- Nigel

--
Nigel Cliffe,
Webmaster at http://www.2mm.org.uk/