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
Category: Lync Server
Checks to do in the Lync/SfB Server Certificate Store
Update 2023/04/17 - Script available at PowerShell Gallery Install-Script Test-CertificateStore Test-CertificateStore 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 … 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/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
Lync Server 2013: Event 14497,14517 LS Protocol Stack
This issue dates a while back, but after Lync Server 2013 Cumulative Update 3 (5.0.8308.556 and above) the Edge Server Access Service won't start with the Event 14497 LS Protocol Stack: One or more configuration errors were detected at startup that cannot be mitigated. Cause: There are serious problems with the server configuration that prevented … Continue reading Lync Server 2013: Event 14497,14517 LS Protocol Stack
Deploying Kemp Technologies Free LoadMaster as Load Balancer and Reverse Proxy
Update 2017/06/07 – Updated the screenshots with the new Kemp LoadMaster UI. In a recent Lync deployment, we were installing a new Kemp Technologies LoadMaster and a new license type was shown: This is great news since we can use it for test/lab environments without having the previous 30 days limitation. Also, in the End … Continue reading Deploying Kemp Technologies Free LoadMaster as Load Balancer and Reverse Proxy
The address ‘LyncEnterprise-ApplicationAccount@…’ isn’t a valid SMTP address
Integrating Lync Server 2013 and Exchange 2013 is usually a relative straight forward process. We just need to follow the steps described here: Integrating Microsoft Lync Server 2013 and Microsoft Exchange Server 2013 https://technet.microsoft.com/library/jj688098.aspx One of these steps is to run the script Configure-EnterprisePartnerApplication.ps1 on a Exchange PowerShell. This script will create a User and the Lync Server … Continue reading The address ‘LyncEnterprise-ApplicationAccount@…’ isn’t a valid SMTP address
Lync/SfB Server: Event 31137,31138 LS Response Group Service
These are common warnings and usually associated with issues such as disabled AD account or user removed from Lync Server: Log Name: Lync Server Source: LS Response Group Service Date: 22/12/2014 19:32:15 Event ID: 31137 Task Category: (2001) Level: Warning Keywords: Classic User: N/A Computer: ************ Description: During the Active Directory update non-SIP enabled agents were … Continue reading Lync/SfB Server: Event 31137,31138 LS Response Group Service