Error "PQstatus: 1, could not connect to server: All pipe instances are busy. (0x000000E7/231)" Appears Connecting to Excel/CSV/Text

Published: 07 Jun 2018
Last Modified Date: 08 Jul 2022


When connecting to an Excel/CSV/Text file, the following error appears:
"PQstatus: 1, could not connect to server: All pipe instances are busy. (0x000000E7/231) Is the server running locally and accepting connections on named pipe "//./pipe/{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}"?" 


  • Tableau Desktop 10.5 or later
  • Tableau Prep


Exclude the processes below from the system monitoring tool:

Tableau Desktop
  • C:\Program Files\Tableau\Tableau <Version>\bin\tableau.exe 
  • C:\Program Files\Tableau\Tableau <Version>\bin\hyper\hyperd.exe 
Tableau Prep
  • C:\Program Files\Tableau\Tableau Prep <Version>\Tableau Prep.exe
  • C:\Program Files\Tableau\Tableau Prep <Version>\resources\app\tableau-1.3\build\Release-x64\hyper\hyperd.exe

Additional Information

2.2 Win32 Error Codes 

Microsoft Previous Versions Documentation regarding the following error message:
0x000000E7 ERROR_PIPE_BUSY  All pipe instances are busy.


The pipe cannot be accessed because another process is using it.

User Action:

Try the operation again later.

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