Welcome to the forum!
I have the same modem I think...(too lazy to go look)
Anyway, there is a setting inside the modem that has to be changed if you use a router...in other words it is set one way for going straight to the comp and then another way for going to a router.
So what you have to do is hook the cat5 cable stright from the modem to the computer and "sign in" to the modem....usually by going to your address bar and typing in 192.168.1.1 and then the name is usually "admin" and the password is "password"...but you can look these up on their site probably etc.
Anyway, there is a setting but I cant remember the name.......maybe it is called "bridge mode" or something like that.....if you go straight to a comp the westell sort of acts like a router itself so it is set to another setting..but I think if you go to a router you set the westell to "bridge mode"
so you hook straight to the westell modem to set it to bridge....then you hook from the westell to the router and then to the comp from the router etc.
Too bad your isp is being gay like that...mine help me set my router up etc...I told em straight up that was what I was going to do....I suppose they want you to buy one of their routers, lol.
JP
Westell support page
http://www.westell.com/pages/support...edcfkcfkcfin.0