Hi @Mohammed Abed,
As far as I know, SharePoint 2019 does not have a built-in template specifically for a Community Site that is designed for internet-facing scenarios. If SharePoint 2019 Community Site is displaying a login prompt on all pages, it could indicate an issue with the authentication and access settings. Here are a few troubleshooting steps you can follow:
Check authentication settings: Ensure that the authentication settings for the SharePoint web application are configured correctly. Verify that the desired authentication provider (e.g., Windows, Forms-Based, etc.) is selected and properly configured. You can check these settings in Central Administration under "Manage web applications" and then selecting the appropriate web application.
Verify user permissions: Confirm that the users accessing the Community Site have the necessary permissions. Ensure that the required user accounts have appropriate access rights granted at the site collection, site, or list/library level.
- Check anonymous access settings: If you want to allow anonymous access to the Community Site, make sure that anonymous access is enabled in the site settings. Navigate to the Site Collection Administration settings and select "Site collection features." Activate the "Limited-access user permission lockdown mode" feature and check if anonymous access is enabled under "Site Permissions" settings.
- Review IIS settings: Review the Internet Information Services (IIS) settings for the SharePoint web application. Check the authentication settings in IIS and make sure they match the configured SharePoint authentication settings.
By following these troubleshooting steps, you can identify and resolve the issue causing the login prompt to appear on all pages of the SharePoint 2019 Community Site.
You can also refer to a similar issue with yours
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