When performing any kind of search in any of the Active Roles Web Interface sites, there may be a timeout if there are a lot of objects to process.
The following IIS 7 timeout error may be observed:
An error occurred during the last operation. Error: Request Timed Out" in any ActiveRoles Server Web Interface site.
Default IIS 7 timeout values are not high enough for the amount of objects being processed during a search in a given environment.
1. Open the web.config that is located here: WI_Install_Path\Public\ in the <system.web> section locate <httpRuntime executionTimeout="<time_in_seconds>"/> and change the value to a larger number. If there is no such setting, add it, as the setting entry below (example for the 5 minutes setting):
2. In IIS 7 Manager check the 'Connection Time-out' setting in seconds (Right-click on the site (for example: "Default Website"), click "Manage Web Site" | "Advanced Settings"), increase the timeout value as needed.