winnt_accept: Asynchronous AcceptEx failed.

[Sun May 26 12:23:42.649103 2013] [mpm_winnt:notice] [pid 1356:tid 352] AH00424: Parent: Received restart signal — Restarting the server.
[Sun May 26 12:23:43.616304 2013] [mpm_winnt:notice] [pid 1356:tid 352] AH00455: Apache/2.4.4 (Win64) OpenSSL/1.0.1e PHP/5.4.14 configured — resuming normal operations
[Sun May 26 12:23:43.616304 2013] [mpm_winnt:notice] [pid 1356:tid 352] AH00456: Server built: Feb 22 2013 22:08:37
[Sun May 26 12:23:43.616304 2013] [core:notice] [pid 1356:tid 352] AH00094: Command line: ‘c:\\apache2\\bin\\httpd.exe -d C:/Apache2’
[Sun May 26 12:23:43.616304 2013] [mpm_winnt:notice] [pid 1356:tid 352] AH00418: Parent: Created child process 3840
[Sun May 26 12:23:44.443106 2013] [mpm_winnt:notice] [pid 3840:tid 240] AH00354: Child: Starting 64 worker threads.
[Sun May 26 12:23:44.458706 2013] [mpm_winnt:warn] [pid 3840:tid 1596] (OS 64)The specified network name is no longer available. : AH00341: winnt_accept: Asynchronous AcceptEx failed.
[Sun May 26 12:23:44.458706 2013] [mpm_winnt:warn] [pid 3840:tid 1596] (OS 64)The specified network name is no longer available. : AH00341: winnt_accept: Asynchronous AcceptEx failed.
[Sun May 26 12:23:44.458706 2013] [mpm_winnt:warn] [pid 3840:tid 1596] (OS 64)The specified network name is no longer available. : AH00341: winnt_accept: Asynchronous AcceptEx failed.
[Sun May 26 12:24:09.621550 2013] [mpm_winnt:warn] [pid 3840:tid 1596] (OS 64)The specified network name is no longer available. : AH00341: winnt_accept: Asynchronous AcceptEx failed.
…
[NOTE THE RESTART OF APACHE WHICH IS REQUIRED TO KEEP THE SERVER OPERATIONAL]

sure you have in httpd.conf:

For 2.2:
Win32DisableAcceptEx
EnableSendfile off
EnableMMAP off

For 2.4:
AcceptFilter http none
AcceptFilter https none
EnableSendfile off
EnableMMAP off