UCWA client is disconnected because w3wp.exe crashes when you use clarity connect in Skype for Business Server 2015

Applies to: Skype for Business Server 2015


In a Microsoft Skype for Business Server 2015 environment, you use a third-party call center application - Clarity Connect that's UCWA based, and agents sign in to the clarity agent. Because of the following UCWA exception, w3wp.exe crashes and agents sign out. This causes the disconnections from audio calls.

Log Name: Application
Source: .NET Runtime
Date: DateTime
Event ID: 1026
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: ComputerName
Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.


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

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