SO I got my hands on a 2850vn today.
Started having a play with it and if I try to forward ports it complains that those ports are in use SO to be able to forward port 80 for example I need to change the router to use another port to access its web interface. 8080 for example.
So this is simple enough I have to access teh router using 192.168.1.1:8080
I find this a little odd though that dozens of other routers I could forward ports 80 and still access teh web interface without having to change the port. My Netgear for example had port 80 forwarded and I still acceessed it using 192.168.0.1
Surely the same thing can be achieved with the Draytek so that if I'm ever stupid and forget which port I set it to I dont have to factory reset it to be able to access it.