TooManyBadItemsPermanentException error when migrating to Exchange Online?

Some of you may have noticed that more migrations might be failing due to encountering ‘too many bad items’. Upon closer review, you may notice that the migration report contains entries referencing corrupted items and being unable to translate principals. I wanted to take a few minutes and provide more information to help understand what…


Lync/SfB Server: Event 41026, LS Data MCU after May 2017 .NET Framework update

Recently we notice that Lync Server 2010/2013 and Skype for Business Server 2015 Front Ends were generating the Events 41025 and immediately after the Event 41026: Log Name: Lync Server Source: LS Data MCU Date: 5/23/2017 5:31:45 PM Event ID: 41025 Task Category: (1018) Level: Information Keywords: Classic User: N/A Computer: sfbfe.uclobby.com Description: Connection to…

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SQL Engineering Blog

Ever wonder when a SQL MP is published? Wonder no longer, look for the SQL Engineering Blog! https://blogs.msdn.microsoft.com/sqlreleaseservices/    


Broken DSC Reporting, RequestEntityTooLarge and some LCM internals

Abtract After migrating a complex DSC configuration using partial configurations to composite resources, DSC reporting using SQL Server as described in Using SQL Server 2016 for a DSC Pull Server did not work any longer or was no longer reliable. This article is about troubleshooting this and learning something about Event ID 4260 and how…


SDN Troubleshooting: Certificates

Software Defined Networking (SDN) Senior Program Manager Anirban Paul continues his contribution to his SDN Troubleshooting series on this blog with the following information about troubleshooting certificate issues in SDN. The rest of this post is provided by Anirban to assist you with your SDN deployment using Windows Server 2016 Datacenter edition. ***** As you…


Demystifying Certificate Based Authentication with ActiveSync in Exchange 2013 and 2016 (On-Premises)

Some of the more complicated support calls we see are related to Certificate Based Authentication (CBA) with ActiveSync. This post is intended to provide some clarifications of this topic and give you troubleshooting tips.What is Certificate Based Authentication (CBA)? Instead of using Basic or WIA (Windows Integrated Authentication), the device will have a client (user)…


Issues to join a node to a Cluster between sites? Problem solved!

Introduction Here is Dante Stancato, Support Engineer from Windows Networking team, and in this article, we will explore an interesting topic, based in several cases we’ve received recently, where you may experience communication failures between two Failover Cluster Nodes. This behavior usually happens on the process of joining nodes to a Failover Cluster in an…


SQL Azure troubleshooting, some ideas and scenarios.

While I was working in a customer request about SQL Azure troubleshooting, I noticed sometimes when we compare the flexibility of SQL on premises tools and SQL Azure, we may feel we are kind of limited. The purpose of this post it is demonstrate something about SQL Azure troubleshooting, at least considering what is available…


Missing Kerberos Account Assignments after SfB Server 2015 In-place Upgrade

Recently we were asked why in a multi site deployment the Kerberos Account Assignments disappeared on a global level, after a single site performed an In-Place Upgrade to Skype for Business Server 2015. When we look at the planning details for the In-Place Upgrade to Skype for Business Server 2015, it mentions that we need to have additional considerations…


Support-Info: (Sync): Run Profile Optimization

Products Involved Discussed Forefront Identity Manager Synchronization Service Microsoft Identity Manager Synchronization Service Purpose: The purpose of this document is to discuss from a high level how to optimally execute run profiles to effectively and efficiently reach the intended goal. Disclaimer This document will discuss the execution of run profiles simultaneously.  However, running more than…

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