Skype for Business Server 2015 CU6 is here!

2017-12-12 4 min read Skype for Business Erwin Bierens

Right in time before the holidays Microsoft has released a new Cumulative Update number 6 with a lot of improvements and fixes. Download here.

Improvements and fixes in the December 2017 update

This update enables Location-Based Routing to support the Skype for Business mobile clients. It also fixes the following issues:

4043636 Skype for Business on Mac can’t retrieve meeting information in Skype for Business Server 2015
4043634 Sign-in dialog box is always displayed when you try to access external web services in Skype for Business Server 2015
4043638 Incorrect format of location information about an E911 call from Skype for Business on Mac
4043641 Update to add a Strict-Transport-Security header to the path of all web service responses in Skype for Business Server 2015
4043637 Update to enable Skype for Business on Mac to restrict external access in Skype for Business Server 2015
4043633 Synthetic transactions fail after installing February 2017 update for Skype for Business Server 2015
4043635 You cannot sign in Web Scheduler in Skype for Business Server 2015
4036633 “We can’t sign you in because you aren’t set up to use Skype for Business” error in Skype for Business Server 2015
4036631 Can’t join an application sharing session of meeting in Skype for Business Server 2015 that has May 2017 update applied
4036632 UCWA clients still can sign in from external networks when the external access is disabled in Skype for Business Server 2015
4036630 Can’t schedule or join a meeting after you apply May 2017 Cumulative Update for Skype for Business Server 2015
4036625 Enables the peer-to-peer file transfer feature for Skype for Business on Mac clients in Skype for Business Server 2015
4036627 Event ID 16385 floods in Skype for Business Server 2015 Director pools
4023993 LS Data MCU events 41024, 41025 and 41026 are constantly generated after you install the May 2017 .NET Framework update
4036621 Mid-call control like “Stop my video” fails if a call occurs from a VTC endpoint in Skype for Business Server 2015
4036622 “ONLINE_USER_COUNT_SETTING is immutable” error occurs if you manage chat user roles with BeginAddUsersOrGroupsToRole
4036623 “Action couldn’t be completed” error when you upload a file to a persistent chat room in Skype for Business Server 2015
4036615 Sets the default value of the “EnableDelegateManagement” attribute to “true” in Skype for Business Server 2015
4036614 “From number” is missing in the Peer-to-Peer Session Detail Report when you dial a PSTN number in Skype for Business Server 2015
4036620 Can’t join meeting by using Skype for Business Room System or Surface Hub devices in Skype for Business Server 2015
4036618 Meeting URLs are visible in search results of a search engine in Skype for Business Server 2015
4036619 Lync or Skype for Business client can’t be started to join meeting if default browser is Firefox 52 or a later version
4036612 Event Id 53530 is logged and connection to SQL database is lost in Skype for Business Server 2015 Persistent Chat Server
4036617 User move fails and many SIP messages are queued after you apply August 2016 update for Skype for Business Server 2015

Get the updates that are released for Skype for Business Server 2015

  * [4057210](https://support.microsoft.com/en-us/help/4057210) December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Conferencing Server
  * [4036317 ](https://support.microsoft.com/en-us/help/4036317)December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Enterprise Web App
  * [4036310 ](https://support.microsoft.com/en-us/help/4036310)December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime
  * [4036316 ](https://support.microsoft.com/en-us/help/4036316)December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Persistent Chat Server
  * [4036315 ](https://support.microsoft.com/en-us/help/4036315)December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Video Interop Server
  * [4036314 ](https://support.microsoft.com/en-us/help/4036314)December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Web Components Server
  * [4036318 ](https://support.microsoft.com/en-us/help/4036318)December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Web Conferencing Server
  * [4036312 ](https://support.microsoft.com/en-us/help/4036312)December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Front End server and Edge server
  * [4036311 ](https://support.microsoft.com/en-us/help/4036311)December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, core components