Title: Caching won't work
Last modified: August 22, 2016

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# Caching won't work

 *  [Andreas](https://wordpress.org/support/users/pompatzis/)
 * (@pompatzis)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/caching-wont-work/)
 * Hey,
 * I’ve searched through the forums (and google), haven’t seen anyone with a similar
   problem, if there was I apologize!
 * My version is 4.0 and it’s on a dedicated server. I upgraded to 4.0 straight 
   from 3.5 but the problems occurred even before the upgrade. I also use Cloudflare.
 * I have always been using WP Super Cache for caching and it was working like a
   charm. Suddenly it “broke”, it kept telling me “timestamps don’t match” for those
   familiar with the plugin and the error log said it had to do with the output 
   buffer (ob_out). I have done extensive research, de-activated all plugins, erases
   occurrences of ob_out in the theme but nothing changed.
 * I then moved to w3 total cache out of frustration. Sometimes caching would work,
   others it wouldn’t. From some point on, browser caching was not working at all.
   In addition, I would occasionally get spikes of cpu and memory overload on my
   server (load average would reach 60 some times!). The mysql process list, showed
   that w3 total cache and wordference were using most resources. I deleted both,
   the spikes seem to have stopped (i hope not temporarily) but I still have not
   resolved my caching problem!
 * So I went on and installed Quick Cache, which did not seem to work at all. I 
   did not see any improvement on performance, nor the timestamp I am supposed to
   see when it’s working.
 * Please note I have also thoroughly examined file permissions etc. So to my questions:
 * Has anyone seen anything similar before?? If so how did you resolve it??
 * Is there a chance this is a server issue rather than wordpress issue? IF so, 
   what cause server configuration to change??
 * In general, If you have any idea or thought about this issue, please let me know!!
 * Thanks

Viewing 1 replies (of 1 total)

 *  Thread Starter [Andreas](https://wordpress.org/support/users/pompatzis/)
 * (@pompatzis)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/caching-wont-work/#post-5397238)
 * Anyone? Anything???No one had a similar problem before??
 * Im starting to be convinced it’s a server configuration problem. No caching plugin
   works, on any of the two websites I have on the linux server.
 * Server Details:
    CentOS 6 – Plesk 10 – RAID 1
 * Any help, or even Idea will be very much appreciated! I have no intelligent idea
   what to do!

Viewing 1 replies (of 1 total)

The topic ‘Caching won't work’ is closed to new replies.

## Tags

 * [cache](https://wordpress.org/support/topic-tag/cache/)
 * [W3TC](https://wordpress.org/support/topic-tag/w3tc/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 1 participant
 * Last reply from: [Andreas](https://wordpress.org/support/users/pompatzis/)
 * Last activity: [11 years, 7 months ago](https://wordpress.org/support/topic/caching-wont-work/#post-5397238)
 * Status: not resolved

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