Wordfence causing site not to load

Hello muffintop,

Are you on a Windows server? You are going to have to locate the server error logs as they most likely contain an answer as to why your site was inaccessible.

Hi,

Yes, I’m on Windows (yawn), however there is nothing in the event logs to show any issues related to this.

Having completely removed Wordfence including left over tables, I’ve reinstalled Wordfence and when activating, the issue kicks in and the plugin doesn’t actually activate. There is nothing logged.. anywhere.

Thanks,

I stand corrected.

When activating the plugin I get this in the event viewer;
Faulting application name: httpd.exe, version: 2.4.12.0, time stamp: 0x550bff42
Faulting module name: php5ts.dll, version: 5.6.0.0, time stamp: 0x53fe2d7e
Exception code: 0xc00000fd
Fault offset: 0x0011f542
Faulting process id: 0x41c
Faulting application start time: 0x01d1fa1c89b064a4
Faulting application path: E:\***\Apache2.4\bin\httpd.exe
Faulting module path: E:\***\PHP\php5ts.dll
Report Id: c92134c4-660f-11e6-9b25-005056845370

Thanks,

I have had the same issue on 1 of the 30 sites I support since WordFence 6.1.11 (6.1.10 still functions). The environment is a Windows 2008 Server running Apache 2.4.23 and PHP 5.5.38. If WordFence 6.1.11 or higher is activated the site may function for a few minutes, then users will get a Page cannot be displayed message. The Apache logs do not report any activity once the site stops functioning.

Here is the error from Windows Event Viewer:
Faulting application httpd.exe, version 2.4.23.0, time stamp 0x577631b1, faulting module php5ts.dll, version 5.5.38.0, time stamp 0x578fc4d8, exception code 0xc00000fd, fault offset 0x0011f082, process id 0xf64, application start time 0x01d1faf70a7d527e.

Starting to look PHP(5ts) related…

Developers… care to comment?

Is your plugin only working with certain versions of PHP?

Thanks,

I have just completed the upgrade to PHP 5.6.25 using the same configuration at PHP 5.5 and got the following error once WordFence 6.1.14 was loaded for a few minutes. Note: the site does not generally lockup right away, sometimes it will function for up to 5 minutes before it stops responding. Here is the Windows Event Viewer information:

Faulting application httpd.exe, version 2.4.23.0, time stamp 0x577631b1, faulting module php5ts.dll, version 5.6.25.0, time stamp 0x57b60661, exception code 0xc00000fd, fault offset 0x0011f322, process id 0x86c, application start time 0x01d1fe56001984e1.

Hello dmann,
we do not officially support Wordfence on Windows machines. However, we till try to help people if we can.

All that error message is saying is that PHP is crashing so it’s hard to say why. I have recently seen a bug on old Windows machines relating to stack size You might want to try this fix just in case. Add the following at the end of apache config file, httpd.conf

<IfModule mpm_winnt_module>
ThreadStackSize 8888888
</IfModule>

and then restart apache.

If that doesn’t work you might have to try updating your whole WAMP stack (not just PHP).

Hi Wfasa,

So far so good. I made this change on my dev server and re-installed the plugin on one site. So far so good, its still up!

To note, I’m also Windows.

Will update later.

Thanks for the info, wfasa

I uncommented the “Include conf/extra/httpd-mpm.conf” in the standard Apache httpd.conf file. Then in the httpd-mpm.conf file I added the ThreadStackSize 8388608 to the IfModule mpm_winnt_module section. After restarting the Apache service and upgrading to WordFence 6.1.14 the site was able to function without issues. Thanks for the help!

Great news thanks for checking back in. I’m glad you were both able to fix it!