/mcpCannot Initialize Cisco IP Manager Assistant Service Problem The Cisco IP Manager Assistant service cannot open a connection to CTI Manager, and the following message is displayed: IPMA Service cannot initialize - Could not get Provider Possible Cause The Cisco IP Manager Assistant service cannot open a connection to CTIManager. You can see the message in the alarm viewer or in the Unified CM Assistant service logs. Solution Restart the Cisco CTI Manager and Cisco IP Manager Assistant services from Cisco Unified Serviceability > Tools > Control Center—Feature Services. Assistant Console Installation from Web Fails Problem Assistant Console installation from the web fails. The following message is displayed: Exception: java.lang.ClassNotFoundException: InstallerApplet.class Possible Cause Using the Sun Java plug-in virtual machine instead of the Microsoft JVM with the standard Unified Communications Manager Assistant Console install causes failures. Solution The administrator directs the user to the following URL, which is a JSP page that supports the Sun Java plug-in: https://<servername>:8443/ma/Install/IPMAConsoleInstallJar.jsp HTTP Status 503—This Application Is Not Currently Available Problem http://<server-name>:8443/ma/Install/IPMAConsoleInstall.jsp displays the following error message: HTTP Status 503—This application is not currently available Possible Cause Cisco IP Manager Assistant service has not been activated or is not running. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 195 Call Center Features Cannot Initialize Cisco IP Manager Assistant Service