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UCWA Event ID 20002, 20003, and 20033 occur after you install the July 2018 cumulative update for Skype for Business Server 2015

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Symptoms

After you install the July 2018 cumulative update for Microsoft Skype for Business Server 2015, you may find that the following UCWA events are logged in the front-end servers:
EventID 20002
UCWA encountered an unexpected exception during initialization.
An unexpected error has occurred during initialization.
Examine the exception details in the associated event log entry to determine the possible cause.

EventID 20003
UCWA encountered an unhandled exception. An unhandled exception happened.
Restart the server. If the problem persists, contact product support.

EventID 20033
UCWA encountered an unobserved task exception.

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Resolution

To fix this issue, install the July 2019 cumulative update 6.0.9319.559 for Skype for Business Server 2015, Core Components.

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Keywords: event id 20002, kb, kbfix, kbqfe, kbHotfixAuto, CI103683

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Article Info
Article ID : 4510845
Revision : 6
Created on : 7/31/2019
Published on : 7/31/2019
Exists online : False
Views : 232