Feb 17 2017
There may be a situation when Skype for Business front end server despite of having enough memory performs very poorly and you can even see low memory errors in Event Log from SQL. In case the front end is hosted on virtual machine the first thing that has to be checked in such kind of …
Feb 10 2017
If you don’t use VoIP gateway that “officially” supported by Microsoft and Skype for Business you may experience troubles in some cases as those devices may not interpret correctly SIP Refer messages sent by Skype for Business Mediation Server. The problem I’ve experienced in my environment was that when you activate “Call me at” feature …
Jan 20 2017
During migration to a new pool there was a need to remove old Front End servers from topology. After removing them from topology builder I received this error: “Cannot publish topology changes. Conference directories still exist on a pool that would be deleted. Remove the conference directories before continuing”. Quick look into the error showed …
Jan 10 2017
There is a need to move Central Management Server to a new pool as the existing one is going to be decommissioned. SQL Backend consists of two MSSQL 2014 Servers running in AlwaysOn Cluster. While running Move-CsManagementServer commandlet with –WhatIf key I got an error: Cannot move Central Management Server. The new Central Management Store …
Jan 05 2017
Skype for Business Server 2015 is available now, along with a new set of demands to install it right on your Windows Server. Here are the recommendations for each Windows version: Windows Server 2008R2: Microsoft recommends that you only install Skype for Business Server 2015 on Windows Server 2012 or 2012R2. However, if you’re …
Jan 04 2017
Skype for Business DNS Records are one of critical components of the whole infrastructure. Skype for Business uses two types of DNS records: A record and SRV record. The DNS is often deployed as “split-brain” DNS deployment: the same zone name is deployed internally and externally but with different (internal or external) IP-addresses for the …
Dec 13 2016
The sympthom is that on Skype for Business Front End Server you see Event ID 1046 LS File Transfer Agent Service in the Event Log: Skype for Business Server 2015, File Transfer Agent cannot send replication data to Replica Replicator on Edge Skype for Business Server 2015, File Transfer Agent cannot get replication status from Replica …
Dec 12 2016
Skype for Business Server 2015 databases are as same as they were in Lync Server 2013. So this article is appliable for Lync Server 2013 as well. Skype for Business Server 2015 installs SQL Server 2014 Express Edition (64-bit) for local configuration databases while SQL Server 2014/SQL Server 2012 SP2 with CU2/SQL Server 2008 R2 …
Dec 07 2016
The Skype for Business Server Backup Service is a service used to support disaster recovery. The Skype for Business Server Backup Service supports two categories of data (UserData and CMS), which it will copy between paired pools to keep them synchronized. The implementation use three modules: UserServices.PresenceFocus, ConfServices.DataConf and CentralMgmt.CMSMaster. The modules can operate both …
Nov 25 2016
Web Conferencing Server connection failed to establish. Over the past 1 minutes Skype for Business Server has experienced incoming TLS connection failures 1 time(s). The error code of the last failure is 0x80090325(SEC_E_UNTRUSTED_ROOT) and the last connection was from the host “”. Cause: This can occur if this box is not properly configured for TLS …
