This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.
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Issue
You may encounter an error when expanding Roles or Users in the K2 Object Browser on Visual Studio 2010.
Symptoms
The error presented is as follows:
"No connection could be made because the target machine actively refused it"

Troubleshooting Steps
To resolve the issue, please follow these steps:
1. Open the ConfigurationManager.config file in C:ProgramDataSourceCode.
2. Locate the key below, and ensure that the 'Host' setting is pointing to the correct K2 server:
"<add key="UserBrowserServer"