We have seen our community members ask questions about Outlook keeps prompting for credentials many times. This issue could be caused by numerous reasons. Below is a list of the most common reasons for this problem:
· Outlook is configured to prompt you for credentials
· Incorrect password cached in credential storage
· Required Authentication Settings for outgoing server and incoming server
· Outlook Anywhere is not configured to use NTLM Authentication
· Corrupt Outlook profile
· Slow or unstable network connection
· Antivirus programs
· Shared calendars
If you are using an Exchange account, there is a setting in your Outlook profile to always prompt for logon credentials. To find the setting, please follow:
1. In Outlook 213, go to tab > > >
2. Highlight your Exchange account and click button.
3. Click on button.
4. Select the tab.
5. Under the
, make sure the “ ” option is not selected.
If you are using other types of email, please make sure you have ticked the option “Remember password”.
Your Windows system stores user credentials on your computer. If the cached credentials are incorrect, you will be prompted for password. This issue usually happens after the password for your domain user account is changed. Before your password changed, you saved your credentials. The stored credentials are not overwritten when Outlook triggers the authentication prompt even if you enable the option.
To fix this issue, you need to remove the corrupted credentials, follow these steps:
1. Click , click , and then click
If is set to , click first, and then click .
2. Locate the set of credentials that has in the name.
3. Click the name to expand the set of credentials, and then click .
Repeat step 3 for any additional sets of credentials that have the word in the name.
Different email provider may need different authentication settings. Please make sure you have set the server settings correctly. You can contact your email provider to gather the information.
In general, we select the “” option and the first bullet “ ”.
In addition, click on the tab and check if you have enter the correct Server Port Number and select the correct encrypt type. Below is a screenshot for an IMAP account:
The Outlook Anywhere feature allows you to access your Exchange account remotely from the Internet when you are working outside your organization’s firewall.
When using Outlook Anywhere to connect to your Exchange server, we need to choose
If your network connection is slow or unstable, Outlook may lose connection to the mail server. When Outlook try to reconnect, it will prompt for the credentials. To verify this, please switch to a stable network environment and then check if this issue persists.
Corrupt profile may cause Outlook to no longer remember your password. Please try to create a new mail profile in Control Panel and reconfigure your email account in the new profile to fix the issue. To create a new mail profile, you can refer:
Antivirus software usually integrates into your Outlook and it may cause some conflicts. Try to temporarily turn off your antivirus software to check if the issue will be gone.
Shared calendars can impact the user credentials, this issue may also occur if you have shared calendars opened in Outlook. You can try to unselect the shared calendar to check the result. It’s recommended to not open the shared calendar unless you want to view them.
If you have any comments, welcome to post in the forum. Thank you.
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