mine was that IIS lost the path to data connector -had to rebuild the path to connector solution.
IIS path was wrong - actually the connector was missing from the IIS list completely -thought from tech is that this was caused by the 7.1 sp1a update. that is my thought as well
IIS was looking for /Alitris/Connector/DataSource/Oledbddatasource.aspx
what is in explorer is /Alitris/DataConnector/DataSource/Oledbddatasource.aspx
so created a rename
IIS/<servername>/sites/default web site/altiris/ right click -add application
Alias
connector
Physical Path - browse to c:\program files\altiris\DataConnector\web
test settings--- I had a failure here on authentication and had to do connect as my altiris admin account
I have been getting a lot of those security boxes with Windows 2008 r2 server for some reason
OK/OK/OK
iis restart
and now I have data connector back in all its glory