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I'm running a multisite network on Wordpress 3.6 with the W3 Super Cache plugin for performance. I'm on a virtual dedicated server, but the Wordpress dashboard started loading so painfully slow, it was excruciating.

So I did a quick search and found this "handy" tip on WPMU. The author suggested that using zlib compression would speed up my load times x3. So I took the advice and pasted this snippet in the header of my theme:

<?php 
    ini_set(’zlib.output_compression’, ‘On’);
    ini_set(’zlib.output_compression_level’, ‘1′);
?>

Instead of "instantly seeing a huge performance improvement," it screwed up something with the blogs.dir and now all uploads and media are broken links. I removed the above PHP snippet, but the links are still dead. I looked in .htaccess and wp-config and didn't see anything input from zlib.

Can anyone help me find a solution to this problem?

Buck Doyle
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John
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    F*kin amateurs, how do people post code with curly quotes as a "tip"? And tell people to use in the theme! Which theme did apply this, the one of the main site? Make sure your .htaccess is exactly as in `wp-admin/network/setup.php`. Also check the error logs of the server and [enable debugging](http://codex.wordpress.org/Debugging_in_WordPress). Maybe new info comes up. This stuff is out my expertise, but anyone looking into it may find [this ticket](http://core.trac.wordpress.org/ticket/14730) interesting. – brasofilo Oct 26 '13 at 04:10

1 Answers1

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Try clearing the W3 Super Cache files, you may be looking at an outdated cached copy. I am not familiar with that plugin, I use W3TC, but there should be some sort of "clear cache" option. Otherwise, deactivate it, and see what happens.

You could also try going to permalink settings, and saving them - that will rewrite your .htaccess file for you - unless your caching plugin is interfering.

NettSite
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