This table is provided to help scope the problem to a certain category.

When you have the answers to these questions, see the following table to determine the kind of issue that you’re dealing with.

Can the affected users reproduce the problem on a single computer or on multiple computers?.Are the users internal or external to your organization?.How many users does the problem affect?.Before you start, ask yourself and any external users who are experiencing the issue the following questions: Let’s assume that you want to troubleshoot issues that occur when users try to join a Skype for Business Online (formerly Lync Online) meeting by using Lync 2010, Lync 2013, the Lync for Windows Store app, or Lync for Mac 2011. Below are the instructions provided by Microsoft: Microsoft has developed detailed instructions for IT administrators to diagnose the issues and fix the problems based on the root causes. With the many different types of endpoints and network configurations that organizations use, there can be different ways that users connect to their Skype for Business environment, and as such, different sources of issues when connecting.

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