Title: invalid key error
Last modified: August 30, 2016

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# invalid key error

 *  [userpress](https://wordpress.org/support/users/userpress/)
 * (@userpress)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/invalid-key-error-1/)
 * I run a multisite and for some reason, W3 Total Cache was a some weird error 
   when accessing the homepage of a site: invalid key.
 * It would start to load the page and I would see the the title appear in the browser’s
   title bar, but then it would redirect to URL query resulting in the error message.
 * However, I can access everything else including the homepage, so long as I added
   some kind of query to the url (e.g. example.com/?foo). And this affected all 
   sites on the network.
 * It might be some kind of cookie issue, since there’s no issue when loggin in 
   and accessing my homepages while in FireFox’s Private Browsing mode.
 * [https://wordpress.org/plugins/w3-total-cache/](https://wordpress.org/plugins/w3-total-cache/)

The topic ‘invalid key error’ is closed to new replies.

 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
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## Tags

 * [invalid](https://wordpress.org/support/topic-tag/invalid/)
 * [key](https://wordpress.org/support/topic-tag/key/)

 * 0 replies
 * 1 participant
 * Last reply from: [userpress](https://wordpress.org/support/users/userpress/)
 * Last activity: [10 years, 9 months ago](https://wordpress.org/support/topic/invalid-key-error-1/)
 * Status: not resolved