The SCCM lost its collections. The collections exist in the database, but they're empty. However, the computers information exist in the database, although only in the default collections. No change was performed recently to the SCCM infrastructure. When trying to synchronize the collections with AD, the information is not retrieved. The queries are based on LDAP. Any thought?

Hi,Sounds very strange, normally changes like don't happen automatically. Can you check the audit status messages queries and see if you can find a reason to the sudden change.Kent Agerlund | http://scug.dk/members/Agerlund/default.aspx | The Danish community for System Center products