Trouble connecting Macbook pro to Draytek Vigor2800vg

Hi there,

I bought a Macbook pro last thursday, and am having problems connecting wirelessly to my Draytek vigor 2800vg router.

I have a full signal strength coming from my laptop, but in system preferences/network, it is informing me that 'Airport has a self assigned ip address and may not be able to connect to the internet.'

The wireless deffinetly works, as I have been able to connect to other networks with no problem, so im presuming it is to do with the setup of the router.

Any help in this matter would be brilliant.

Thanks in advance,

Ashley