How to Clear Lync Temporary Cache Files

Overview

Lync caches files locally on a PC or MAC to pull information quickly and efficiently. However, there are times where it is necessary or helpful to delete those files and force Lync to get a new set from the server. 

Common reasons you will want to clear your cache include:

• If you can't log in to Lync

• If your Outlook and Lync integration is not functioning properly

• If you have issues with Presence

Process

Lync 2010 or Lync 2013 for Windows

STEP 1 - The Client

1. Log out of Lync 2013

2. Delete my sign-in info

3. Exit the Lync 2013 client

STEP 2 - Delete Files

1. Click Start. Go to Computer. In the address bar, copy and paste \%AppData%\..\Local\Microsoft\Office\15.0\Lync\

2. Delete your sip profile folder

3. Go into the Tracing folder

4. Delete the all files, but not the folders

5. Close the window

STEP 3 - Clear DNS Cache

1. Click on Start >> Type CMD >> Press Enter

2. Type ipconfig/flushdns >> Press Enter

3. Type exit >> Press Enter

COMPLETE, go to All Programs and start LYNC again