We have Exchange 2010 in a DAG config. Users run Outlook 2010 clients. Over the past few months more and more users complain of being asked for credentials by Outlook continually throughout the day or a few days. Some people get prompted for the credentials over and over acting like their PW is incorrect. For these people I add a entry in Windows 7 Credential manager but this is a pain bc when they change PW 90 days later they forget they have this and haven't changed the PW there. Some people get the pop up prompt then never get it again. It is a random issue, different for everyone considering length and how often and on going issue getting worse for months now.
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