Lync/SfB: Different scenarios using EnableSkypeUI option

The Lync/SfB Client April 2015 update introduced the new SkypeUI. For some this post may be late, but we still see some confusion on what we have to do before applying the update or which scenarios are available. The article in the link below describes the configuration that we need to do: Configure the client experience … Continue reading Lync/SfB: Different scenarios using EnableSkypeUI option

Lync/SfB Server: Checking for duplicate entries in the Active Directory Configuration Partition

While troubleshooting the issue described in Checking for "ms-RTC-SIP-TrustedServer" multiple Active Directory entries with PowerShell, we encountered more duplicates for the same server, so we decided to compile all in one place. Like in our previous post Checks to do in the Lync/SfB Certificate Store, this list will also be updated and, again, you are … Continue reading Lync/SfB Server: Checking for duplicate entries in the Active Directory Configuration Partition

Skype for Business Server 2015 Cumulative Update List: July 2020

With the first release of an update for Skype for Business Server 2015, it is a good opportunity to publish a list of Cumulative Updates. We will try to keep it updated as soon as a new Cumulative Update is released. Like in the previous versions, this list will include the version for the Core … Continue reading Skype for Business Server 2015 Cumulative Update List: July 2020

Checks to do in the Lync/SfB Server Certificate Store

Update 2019/06/10 - Added Check #7 for expired certificates. The checks described in this article are the result of what we normally check during troubleshooting. Some of these already have specific error events, but the objective here is to try to avoid that these events occur. We plan to keep the post updated and add … Continue reading Checks to do in the Lync/SfB Server Certificate Store

Checking for “ms-RTC-SIP-TrustedServer” multiple Active Directory entries with PowerShell

While publishing and enabling a topology, we were getting this error: Enable-CsTopology: Multiple Active Directory entries were found for type"ms-RTC-SIP-TrustedServer" with ID "<SERVER FQDN>". The publishing was successful but then the enabling was showing this error. The next step was to check the duplicates in the Active Directory Configuration Partition. For those who have already … Continue reading Checking for “ms-RTC-SIP-TrustedServer” multiple Active Directory entries with PowerShell

Lync 2013 won’t change to Skype4B when deployed using OCT

We found out that there is a scenario where the icon isn't changed to Skype for Business after the April 2015 update. The Start Menu shortcut was also Lync 2013: While troubleshooting the issue, we discovered that the C:\Windows\Installer\{91150000-0011-0000-1000-0000000FF1CE}\ folder contained two different files with Lync and Skype4B icons: After testing it, we discovered that the … Continue reading Lync 2013 won’t change to Skype4B when deployed using OCT

Changing back to Lync 2013 Icon after the April 2015 update

Some of us were surprised by the Lync 2013/Skype for Business Client update, since this security update also included the Skype4B User Interface. Lync/Skype4B administrators could still use the recently added EnableSkypeUI setting to the Client Policy in order to manage which UI they want the user to see. In our Lync Lab, we have … Continue reading Changing back to Lync 2013 Icon after the April 2015 update

Lync/SfB: How to configure Internal Web Services Override FQDN

A common question while planning/deploying Lync Server and Skype for Business Server is: When do we need to configure Internal Web Services Override FQDN? The answer to this is quite simple — we only need it if we have to split SIP traffic from HTTP/HTTPS. We know that this answer will raise more questions, so first we should … Continue reading Lync/SfB: How to configure Internal Web Services Override FQDN

Reassign the private key after deleting a certificate from the snap-in

In case we delete, by mistake, a certificate using the Certificate snap-in, we can still restore it. In order to do this, we need to import the certificate again and reassign the stored private key to it, without having to create a new request. The following article was published for IIS, but it also applies to Lync/SfB Server … Continue reading Reassign the private key after deleting a certificate from the snap-in

Merge certificate public and private key with OpenSSL

This post isn't about Lync Server/Skype for Business Server, but we think it will be a good reference for people that work with Lync/Skype. When we do an offline certificate request, we will get an .REQ file that looks like this: -----BEGIN NEW CERTIFICATE REQUEST----- ################################### -----END NEW CERTIFICATE REQUEST----- Then we use public or private CA … Continue reading Merge certificate public and private key with OpenSSL