Brokers connections that allow Windows Store Apps to receive notifications from the internet.

Network Connection Broker is a Win32 service. In Windows 10 it is starting only if the user, an application or another service starts it. When the Network Connection Broker service is started, it is running as LocalSystem in a shared process of svchost.exe along with other services. If Network Connection Broker fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the NcbService service has failed to start due to the error.

Network Connection Broker cannot be started under any conditions, if the following services are disabled, deleted or working improperly:

While Network Connection Broker is stopped, disabled or working incorrectly, theConnected Devices Platform Servicecannot be launched.

Restore Default Startup Configuration for Network Connection BrokerBefore you begin doing this, make sure that all the services on which Network Connection Broker depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

3. Close the command window and restart the computer.

The NcbService service is using thencbservice.dllfile that is located in the%WinDir%\System32folder. If the file is changed, damaged or deleted, you canrestore its original versionfrom Windows 10 installation media.