Hi Folks, Just sharing one of the upgrade issues that we have when we upgrade to R2 from ConfigMgr 2012 CU3 when pull dps are there in the environment. Note: We have fixed the issue in our latest R2 bits. For more information: http://blogs.technet.com/b/configmgrteam/archive/2013/11/26/replication-errors-in-system-center-2012-r2-configuration-manager.aspx Issue: ===== CAS and primaries went to the Maintenance…