I am having an issue in one SharePoint site. We have recently migrated from 2007 to 2010.
Problem: Not able to browse the website first time (After opening the browser). It needs 3-4 refreshes and then it will prompt for credentials to browse. This is intermittent.
we have checked DNS entries and everything is right.
Error in SP Logs: Alternate access mappings have not been configured. Users or services are accessing the site http://servername with the URL http://aa. This may cause incorrect links to be stored or returned to users. If this is expected, add the URL http://aa as an AAM response URL.
AAM settings:
Internal URL Public URL Zone
http://servername http://servername Default
http://aa.company.com http://aa.company.com Intranet
One more thing why its asking to add http://aa instead of http://aa.company.com