After installing Symantec Endpoint Protection (SEP) 14.0 RU1, Random hanging occurs on Lync server.

Products

• Endpoint Protection

Issue/Introduction

After installing Symantec Endpoint Protection (SEP) 14.0 RU1, Random hanging occurs on Lync server.

Multiple Lync production servers had encountered hangs. The analyses by Microsoft indicate that the issue is caused by SEP driver.

Environment

SEP version: 14.0.3752.1000

OS: Windows Server 2012 R2 Standard Edition

Cause

The DUMP logs and Symdiag logs collected. After analysis, it is confirmed that the hang caused by SEP driver.

Resolution

This issue will be resolved in SEP 14.2 RU1 MP1.

Workaround:

Exclude the following directory, including all subdirectories, from being scanned: The path depends on your version of SEP: "C:\ProgramData\Symantec\Symantec Endpoint Protection\<version>\Data\Definitions".

Example for SEP 14.0 RU1: C:\ProgramData\Symantec\Symantec Endpoint Protection\14.0.3752.1000.105\Data\Definitions

Note: These paths may vary depending on product build, or if the ProgramData or Windows directories have been moved to another drive.