Internet Information Services 7.5

Error Summary

HTTP Error 503.4 - Service Unavailable

The FastCGI pool queue is full

Detailed Error Information
ModuleFastCgiModule
NotificationExecuteRequestHandler
HandlerPHP7.0 production
Error Code0x80070004
Requested URLhttps://www.sohosted.com:443/index.php?klantnummer=29240&domein=vi3eo.com
Physical PathC:\domains\www.sohosted.com\index.php
Logon MethodAnonymous
Logon UserAnonymous
Most likely causes:
  • The system.webServer/fastCgi/application@queueLength setting has been exceeded
Things you can try:
  • Try increasing the value of the setting.
  • Check that external resources (for example, disk, database, etc..) are performing at expected levels.
  • Check that the application has not deadlocked.
Links and More Information

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