Title: Intermittent 404 errors when previewing
Last modified: August 1, 2019

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# Intermittent 404 errors when previewing

 *  Resolved [markvehec](https://wordpress.org/support/users/markvehec/)
 * (@markvehec)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/intermittent-404-errors-when-previewing/)
 * I’ve been using the Total theme for several projects and support has been phenomenal.
   I had been using Custom Post Types UI for a few projects and began testing the
   Post Types Unlimited plugin as a possible replacement for that. On several sites,
   some with and some without Total set as the theme, when trying to preview posts
   created in a CPT using PTU, I intermittently get a 404 error. Not sure what is
   happening but it is keeping me from moving forward with it as a replacement for
   CPT UI.
 * I could create a video to show what is happening, but essentially, when previewing
   a post, I sometimes get the preview as expected and the URL is clean, like this(
   from a local test site):
 * [http://localhost:81/wordpress/self-help/some-kind-of-kb-article/?preview=true](http://localhost:81/wordpress/self-help/some-kind-of-kb-article/?preview=true)
 * When I get a 404 instead, the URL contains much more information and looks like
   this:
 * [http://localhost:81/wordpress/self-help/some-kind-of-kb-article/?preview_id=75&preview_nonce=27ffd3ad0a&post_format=standard&_thumbnail_id=-1](http://localhost:81/wordpress/self-help/some-kind-of-kb-article/?preview_id=75&preview_nonce=27ffd3ad0a&post_format=standard&_thumbnail_id=-1)
 * I’m still a bit of a babe in the woods with some things WordPress does so this
   could be something I am doing. I’ve experienced it in several environments (from
   IIS to WAMP) with different versions of WP running and all seem to have this 
   problem.
 * Thanks.

Viewing 1 replies (of 1 total)

 *  Plugin Author [WPExplorer](https://wordpress.org/support/users/wpexplorer/)
 * (@wpexplorer)
 * [6 years, 9 months ago](https://wordpress.org/support/topic/intermittent-404-errors-when-previewing/#post-11907930)
 * 404 Errors are generally issues with WordPress permalinks. Have you tried re-
   saving your permalinks?
 * – AJ
 * ps: If you are using Total be sure to seek support on the item page or create
   a support ticket to make sure I get back to you ASAP as you have access to premium
   support. Thanks!

Viewing 1 replies (of 1 total)

The topic ‘Intermittent 404 errors when previewing’ is closed to new replies.

 * ![](https://ps.w.org/post-types-unlimited/assets/icon-256x256.png?rev=2516554)
 * [Post Types Unlimited](https://wordpress.org/plugins/post-types-unlimited/)
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 * 1 reply
 * 2 participants
 * Last reply from: [WPExplorer](https://wordpress.org/support/users/wpexplorer/)
 * Last activity: [6 years, 9 months ago](https://wordpress.org/support/topic/intermittent-404-errors-when-previewing/#post-11907930)
 * Status: resolved