User authentication issues in Outlook
We currently have an exchange 2010 environment setup with an LTM running 10.2.X code in front. There is a single VIP for all user traffic into the the exchange services. What we are seeing is that when a user takes their laptop over from the wired network to the wireless they are getting a new IP on the network and it appears that they are geting prompted in the Outlook client to re-authenticate. The same behavior happens when users take their laptops home and come in though the corporate VPN.
What we are speculating is that the user persistence, which is set to user IP, is reselecting one of the other CAS servers when they go to wireless or remote. Has anyone come across an enviroment where users could potentially change IP addresses over the course of the day and if so did you see this Outlook authentication issue?