I got this error:
Search Service Application: Crawl Log – Error Breakdown
|Access is denied. Verify that either the Default Content Access Account has access to this repository, or add a crawl rule to crawl this repository. If the repository being crawled is a SharePoint repository, verify that the account you are using has “Full Read” permissions on the SharePoint Web Application being crawled.|
…but the “default content access account” already had “Full Read” permission on the web application.
- Check “DisableLoopbackCheck” in Windows Registry on SharePoint Server.
- Or check “BackConnectionHostNames” in Windows Registry on SharePoint Server.
- Check the content source setting: Is the web application url the one defined as “Default Zone” in Alternate Access Mappings of the web application?
- Check the authentication provider for the web application: SharePoint Search works with Windows Integrated Authentication. It is required that the “default zone” is configured with “Windows Integrated Authentication”, not “Basic Auth”!
Maybe the server requires a reboot after changing the configuration.