Title: Invalid security token
Last modified: August 30, 2016

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# Invalid security token

 *  Resolved [weekendatbernies](https://wordpress.org/support/users/weekendatbernies/)
 * (@weekendatbernies)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/invalid-security-token-6/)
 * Fresh install, I’m getting the following error:
 * Your browser sent an invalid security token to Wordfence. Please try reloading
   this page or signing out and in again.
 * I have tried disabling caching and deleting local cache, signing in and out etc.
 * [https://wordpress.org/plugins/wordfence/](https://wordpress.org/plugins/wordfence/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [WFMattR](https://wordpress.org/support/users/wfmattr/)
 * (@wfmattr)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/invalid-security-token-6/#post-6537764)
 * Does this happen when viewing every Wordfence page?
 * Normally I have only seen this if I have a Wordfence page open in one window 
   or tab, and log out of the site in another tab.
 * If that isn’t the case, do you have any caching set up on the site that would
   cache admin pages? (Most WordPress cache plugins wouldn’t do that, but if you
   have a different type of cache set up, it might treat admin pages the same as
   any other.)
 * It could also be a browser issue, if you have any extensions/add-ins for the 
   browser itself that might modify requests, or using a proxy if it is not configured
   correctly.
 *  Thread Starter [weekendatbernies](https://wordpress.org/support/users/weekendatbernies/)
 * (@weekendatbernies)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/invalid-security-token-6/#post-6537781)
 * This happens just when trying to start a scan, i.e. clicking on the scan button.
   
   There is no site caching, and it happens with any browser.
 * Something else about the site I noticed was that when starting the wizard with
   Post SMTP plugin, it displays all 4 steps in one page without a save button.
 * It would seem that some site functionality is missing.
 *  Plugin Author [WFMattR](https://wordpress.org/support/users/wfmattr/)
 * (@wfmattr)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/invalid-security-token-6/#post-6537799)
 * This might be from a conflict with another plugin or the theme. Can you try disabling
   all other plugins, and switching to a default theme like “twentyfifteen”?
 * You might need to log out of the site, and log back in after doing this, before
   checking if the scan works. (If it works, you could try enabling the other plugin
   you mentioned, and see if either one has an error.)
 * You can also check the javascript console while viewing the Scan page, before
   trying the button, and again after clicking it, to see if any errors are logged.
   If you’re not familiar with the javascript console, see this page:
    [How to open the javascript console](http://docs.wordfence.com/en/You_guys_wanted_me_to_open_the_JavaScript_console_-_How_do_I_do_that%3F)

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Invalid security token’ is closed to new replies.

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## Tags

 * [Invalid Security Token](https://wordpress.org/support/topic-tag/invalid-security-token/)

 * 3 replies
 * 2 participants
 * Last reply from: [WFMattR](https://wordpress.org/support/users/wfmattr/)
 * Last activity: [10 years, 8 months ago](https://wordpress.org/support/topic/invalid-security-token-6/#post-6537799)
 * Status: resolved