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Why multiple credentials prompt for Sharepoint server?

This is using MS Sharepoint server 2013 on abc.com MS AD Domain on Windows Server 2012 R2. This abc.com AD formed a trust relationship with another def.com local AD Domain (w2k8 r2 based). However, there is always multiple logon prompting when def\user accessing the sharepoint web. The Symptom is, some times, initial web accessing need to type in password for up to 8 - 9 times. The second symptom is, def\user re-access the sharepoint web after kept the website idle for 2 hours or so, and multiple prompting is expected.

Could these symptom occurred due to the cross-forest authentication? or other thing else?

Thanks for any help.

Walter Curtis

You mention
accessing the sharepoint web

What happens when they access SharePoint? Do the log-in prompts come from home page and continue to come while still on the web page, or does access SharePoint mean the users are going to different pages and each new page brings a log-in prompt?

...

MichaelBalack

ASKER

Normally prompts come when revisit the same page or different page after idle for 2 hours or so.

Walter Curtis

The prompt after 2 hours is normal and can be configured in Central Administration under general settings.

The other prompts could be from the content on the page. For example if there are images on the page that are stored in a different web site, then a prompt may appear because authentication is needed for that resource. The number of prompts you are getting seems excessive, but is possible. Take a good look at the page and see what it is doing.

Good luck...

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MichaelBalack

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Walter Curtis

Glad you got it fixed.

MichaelBalack

ASKER

By updating the few patches, issue disappears. It looks weird, but works.