Gen "Cannot create client manager IPC"
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Gen "Cannot create client manager IPC"


Article ID: 104190


Updated On:


Gen Gen - Run Time Distributed


Using Gen Client Manager.
Users are frequently seeing the error message "Cannot create client manager IPC (Queue or mailslot)" which gets resolved automatically after few hours. However this means that all the users facing this error are not able to access the application during that time-period.


Release: 8.5, 8.6
Gen Client Manager


Client Manager uses IPC mailslots and in general expects, one application per terminal.
Issue was confirmed as being due to multiple users connecting to one Virtual Server and the client Manager being configured to run as single instance. 

Additional Information

If using any kind of virtualization like VCS or Citrix the Multi Instance Client Manager (MICM) configuration needs to be used. However this is now deprecated functionality per article: Gen Deprecated Functionality: Multi-Instance Client Manager