To stop SharePoint from prompting for credentials:
- Open Internet Explorer.
- On the top right-hand corner, click the Tools icon, and select "Internet Options".
- Select the "Security" tab, and click on "Trusted Sites".
- Click on "Sites".
- Type https://*.hostedsharepoint.co.nz and click "Add".
- Type https://adfsprd1x.onenet.co.nz and click "Add".
- Click "Close".
- Untick "Enable Protected Mode"
- Click "Custom level..."
- Click "OK".
- Restart Internet Explorer
Some users may be running on older operating systems, such as Windows 7. You may need to complete the additional step "select the option to login automatically", by following the guide in this link: https://www.uta.edu/oit/cs/software/microsoft/sharepoint/how_to/sp_auto_login/index.php
- Scroll down to the "User Authentication" section and select "Automatic logon with current user name and password". Click "OK".
- Click "OK".
- Restart Internet Explorer
If you're still running into issues, try these:
http://www.sharepointdiary.com/2012/04/sharepoint-keeps-asking-for-password.html
http://www.mysharepointadventures.com/2012/02/sharepoint-keeps-prompting-for-credentials/
- Open Regedit
- Navigate to HKLM\System\CurrentControlSet\Services\WebClient\Parameters
- Create New Multi-string value called AuthForwardServerList
- In the value box, type *.hostedsharepoint.co.nz
- Reboot
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