I've followed all the steps for setting up SSID2 guest wifi onto LAN2 using the VLAN section and guidance document from Draytek here: http://www.draytek.com/index.php?option=com_k2&view=item&id=2647&Itemid=293&lang=en but, although I get a good IP from the Draytek LAN2 DHCP server on a separate subnet to my main connection, I cannot connect to internet using the guest wifi - any one set this up successfully and can point me in the right direction?

I have a UK 2920n on latest FW 3.6.3

When you say that you cannot get a good connection to the internet; do you mean that you cannot browse web pages or do you mean that you cannot ping an external IP address directly?

I only ask because if you have your LAN DNS configured to a device on LAN1 then any client connected to LAN2 will be unable to resolve host names on the interwebbings. They would still be able to ping IP addresses directly. T'is quite a common problem and worth checking.

I may have sussed it maybe? I had the DNS set to the Google public servers but it was picking the gateway address as 192.168.3.1 (the default for LAN2) - I've re-pointed this to the LAN1 gateway address of 192.168.1.1 and now can reach the interwebs... My clients now have the following: - IP 192.168.3.#, DNS 8.8.8.8/8.8.4.4, Gateway 192.168.1.1

Am I still isolated correctly?