I've just upgraded to 2.4 and am using mod_access_compat, so I can use the existing auth config in the short term. I've fixed a few things and now the daemon loads cleanly, however, when i try to get the anonymously available front page, it returns a 500 and error.log shows;
[Tue Apr 03 16:13:33.595505 2012] [core:error] [pid 20896:tid 139858125358848] [client u.x.y.z:16567] AH00027: Buggy authn provider failed to set user for / At a password protected directory (there's an .htaccess) it also returns 500 and the log is; [Tue Apr 03 16:15:50.244851 2012] [core:alert] [pid 20895:tid 139858125358848] [client u.x.y.z:20702] /blah/blah/.htaccess: Invalid command 'Require', perhaps misspelled or defined by a module not included in the server configuration Shouldn't "Require" from the .htaccess file be recognised by mod_access_compat? Any ideas about the AH00027 error?