Cisco Jabber for Windows attempts to retrieve local Microsoft Outlook contacts from the Outlook PST file. If Outlook does not cache local contacts in the PST file, Cisco Jabber for Windows sends contact resolution requests to the MAPI server. As a result, the MAPI server can experience an impact to performance. Cisco recommends that you configure Outlook to cache local contacts in the PST file. Otherwise, you must ensure that your MAPI server is capable of managing the requests from Cisco Jabber for Windows.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.