this is how to resolve your issue
-push and hold the reset button at the back of the modem for 30 secs.
-if it asked you for authentication, the username will be admin and password is password
-another authentication will appear, just enter "admin" on the 3 boxes the click change then ok button
-you will see the westell home page, click the profile editor button
-then another page will appear
-click the "release button"
-after that, click renew button
--powercycle your computer and modem