400 bad request error when trying to access Webclient.


Since the IP address scheme for the site had been changed, trying to start a Webclient session results in 400 bad request error in the browser session.

There are no issues when accessing Webclient on the Webserver.

Product Line

Andover Continuum


  • WebClient
  • IIS


Default Website in IIS is configured with the old IP address.


  1. Set the new IP address in the Properties of the Default Website.
  2. Then stop and restart IIS.