IT Technical Blog (Formerly WeakestLync.com)
When enabling users for Skype for Business you may encounter the following error: “Active Directory operation failed on “Domain Controller”. You cannot retry this operation: “Insufficient access rights to perform the operation” I first blogged about this in 2011 for Continue reading Skype for Business 2015 – Enable User “Active Directory operation failed”
I recently came across an issue where the SCOM (System Center Operations Manager) Agent was installed on all servers in a customers Skype for Business (SfB) Edge pool but they were not appearing in the SfB Management Pack (Skype for Business 2015 Server Continue reading Skype for Business 2015 – Edge Servers not discovered by SCOM SfB Management Pack
A few years ago I created a Lync 2013 backup script that would backup data from all servers in the Topology. Lync 2013 Automated Backup Script This script also works with Skype for Business 2015 but it specifically backed up Response Continue reading Skype for Business 2015 – Automated Backup Script
I recently ran an “In-Place” upgrade from Lync 2013 to Skype for Business 2015 on a 3 node Enterprise Front End pool. After the upgrade all 3 Front Ends were logging the following error every 10-15 minutes. Log Name: Lync Continue reading Skype for Business – Failed to execute a stored procedure on the back-end
I recently deployed Skype for Business 2015 standard edition pool pairing. The CMS was originally on a Lync 2010 Standard edition server and was moved over to a Skype4B Pool1 when Lync was decommissioned. Skype4B Pool2 (FE2) was logging the following event IDs every few Continue reading Skype for Business – Central Management Backup Module Failed
Ok here is a little tip when trying to add trusted root certificate authorities to Skype for Business 2015 and Lync 2010/2013 Edge servers. Microsoft have a list of Unified Communications Certificate Providers detailed here: https://support.microsoft.com/en-us/kb/929395 Windows now automatically downloads Trusted Root certificates Continue reading Skype for Business (Lync) – Easiest way to add trusted root certificate authorities to Edge
I have recently encountered a strange issue where all 3 Front End servers in the same pool ran out of disk space at the same time. When investigating both sqlservr.exe processes (RTCLOCAL and LYNCLOCAL) were consuming the whole page file (or Continue reading Lync – Page file causes Front End to run out of disk space (sqlservr.exe and pagefile)
Microsoft detail how to move users from Lync On-Prem to Lync Online and how to bulk move users in an OU or with a particular AD attribute: https://technet.microsoft.com/en-us/library/jj204969%28v=ocs.15%29.aspx?f=255&MSPPError=-2147217396. If you want to bulk move users to Lync Online from a CSV Continue reading Lync – Move On Prem users to Lync Online from CSV
A customer was having problems with their Lync 2010 deployment federating with Office 365. When searching for a Lync Online user they would see “Presence Unknown” and be unable to send Instant Messages. They could Federate with other On-Prem Lync Continue reading Lync – Office 365 Federation Presence Unknown
I recently ran into a problem with Checkpoint Firewalls on a Lync 2010 deployment. The customer already had a single 2010 Front End and wished to enable external sign in over the internet as it did not work over their Continue reading Lync – Unable to sign in via Edge (Checkpoint Firewalls)