# RC Build 1892 - Error Communicating with Service Host

**URL:** https://www.finalbuilder.com/forums/t/rc-build-1892-error-communicating-with-service-host/5812
**Category:** Bugs
**Created:** [April 19, 2013, 2:57am UTC](https://www.finalbuilder.com/forums/t/rc-build-1892-error-communicating-with-service-host/5812 "2013-04-19T02:57:56Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Jenasys](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/jenasys/32/888_2.png) [@Jenasys](https://www.finalbuilder.com/forums/u/Jenasys)
#### Post date: [April 19, 2013, 2:57am UTC](https://www.finalbuilder.com/forums/t/rc-build-1892-error-communicating-with-service-host/5812/1 "2013-04-19T02:57:56Z")

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I have no idea how this one was triggered.

> _Error communicating with service host_   
>   
> _There was an error reading from the pipe: Unrecognized error 109 (0x6d)._

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### Author: ![Vincent](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/vincent/32/938_2.png) [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [April 19, 2013, 3:07am UTC](https://www.finalbuilder.com/forums/t/rc-build-1892-error-communicating-with-service-host/5812/2 "2013-04-19T03:07:10Z")

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This can happen when the services are shut down, for example when upgrading, if the agent is busy talking to the server when the server is upgraded. We have been looking for ways to mitigate this, however there’s no simple way to detect an ‘in flight’ wcf call.