KB-2145 Asynchronous AcceptEx failed error messages in the Apache error log

Symptoms

Apache experiences random locks and becomes unresponsive for long periods of time. This can be seen in long stall times and connection resets in a network capture. Additionally, the following error is seen in the Apache error log:

The specified network name is no longer available. : AH00341: winnt_accept: Asynchronous AcceptEx failed.

Cause

This error message is generally caused by a faulty program or driver inserting itself into the Windows network stack.

Action

The following lines needs to be added to the Apache's configuration file (<APACHE_HOME>/Apache24/conf/httpd.conf):

AcceptFilter https none
AcceptFilter http none

Affected Versions

This article applies to all versions of Appian using Apache as a Web Server. 

Last Reviewed: August 2020