I purcahsed a RAQ 3 today and ever since the initall set up cannot access the site admin from the IP i was allocated/ Any possible causes for this?

Try going to:

https://xxx.xxx.xxx.xxx:81/.cobalt/sysManage/index.html

Replace the xxx's with your IP number of course.

Well, if the machine is set up, don't access it by the IP, access it by the name you gave it.

I don't know for sure how these work, but:

You may have been assigned a block of IP addresses. Make sure the one you're typing in isn't a subnet address...