Small VPN passthrough problem

paradigm · 25 Apr 2008 at 12:28

Hi all, at work we have a Draytek Vigor 2800 ADSL2/2+ router, set to pass VPN traffic through to an internal RRAS server (TCP port 1723 is also open to this machine).

Randomly for the last two days, I have been unable to, then suddenly able to connect to the VPN. It was working all day yesterday up until the first time it started to play up around 6pm. It stayed "down" until around 9pm, when randomly I could connect again. This morning it was fine, but now its just died again, and to the outside world, it is as if port 1723, or VPN passthrough is disabled.

NOTHING has been changed on the router between when it was fully stable (2 days ago), and now.

The RRAS server is still accepting requests, as I can get a machine on the LAN to "dial in" as it were, and it will still authenticate and connect.

This to me says the router is playing up no?

Thanks in advance guys.

Sin_Chase · 25 Apr 2008 at 12:32

Are you able to use regular connectivity on the router while the VPN is unusable? Eg - VPN issue or entire connectivity to the net.

paradigm · 25 Apr 2008 at 12:34

Well I'm at home, and I can still get onto the remote managemant page on the router, can still get to our outlook web access pages, and can still RDP, so yeah, its just an issue with VPN passthrough I think.

PiKe · 25 Apr 2008 at 12:36

You'd be better off posting on the draytek forum.

paradigm · 25 Apr 2008 at 12:48

I have now posted it up there, but their forum isn't as quick

Why oh why can't I get the MD to actually spend some money on kit I actually want to manage

quackers · 25 Apr 2008 at 12:58

paradigm, have you tried running the shields up test from inside your network?

do it when it's ok, do it when it's playing up see if there is any change

That should tell you if port 1723 is open etc