I recently install Sharepoint 2010 on a Windows Server 2008 R2 domain member computer that is dedicated for this use. I can connect to and use the site from any computer on the lan, but if I try to hit it from outside I am prompted for credentials. I tried my username and password in UNC format as well as firstname.lastname@example.org but it just keeps re-prompting me. I know the credentials are right and my firewall has both 80 and 443 forwarded to the sharepoint server.
Any advice on how to get this working? I do have an Active Directory domain set up and I was under the impression that Sharepoint would automatically configure itself to work with AD if it is installed on a member computer but that does not seem to be the case, nor can I find where to sync the userbase up with AD.
I did add the DisableLoopbackCheck entry into the registry but that did not help.