I have been having issues with my Draytek 2830 which I cannot get my head around. I have BT fibre braodband line conneted to vigor router via BT Openreach box. Some days I loose my internet connection every 10-20 mins. Other days there is no problem. When I loose the intenet connection, remote users dialing in can stil access the network fine. A reboot of the router sorts the problem but this is becoming quite a pain having to reboot so often.

Has anyone had any similar problems or can any suggest a solution?

Is the open reach box set up for NO NAT?

At Lan>>general set up>>lan 1>>details page >>add manually the dns servers of infinity and see if will make problem again

Thanks for the suggestions. I have made the changes as suggested above. Will test over the next few days and see if the problem is gone.

Hey cleary, did the fix work, or did you fix it another way please?

I have a similar problem with the 2860n+.
However, I only experience drop-outs when it's actully used.
It'll connect for 48 hours over a Sat / Sun, but as soon as somebody is on the network, reboots happen between 3 and 8 minutes.
That's on an BT ADSL 2+ line, London Southbank Exchange.
SNR is 20db, but Margin has gone up to 15db now.