Title: Upload failed! Unknown error.
Last modified: October 25, 2020

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# Upload failed! Unknown error.

 *  Resolved [fiberlyone](https://wordpress.org/support/users/fiberlyone/)
 * (@fiberlyone)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/upload-failed-unknown-error-4/)
 * Three weeks ago when I set up a form for members to upload files, it worked. 
   Several .jpg files were successfully uploaded by two different users, using free
   version.
 * This morning I received a message from a member who could not upload any files.
 * Researching, I found the article about changing Allowed File extenstion from *.*
   to specific extension types so replaced with *.zip, *.pdf, .jpg, *.jpeg, *.png.
   I logged in as a different user and successfully uploaded four files.
 * I tried a large file and couldn’t upload, so upgraded to Pro.
 * Then I changed something unknown and I can only upload as admin, though Upload
   Roles and Upload Users are set to All. Every test under a different user returns“
   Upload failed! Unknown error.”
 * I have deactivated the cache plugin and still can’t upload as non-admin
 * I set up the following page that allows uploads as guest. Logged in or out returns
   the same error (except admin).
    [https://www.columbiariversewing.org/test-upload/](https://www.columbiariversewing.org/test-upload/)
    -  This topic was modified 5 years, 7 months ago by [fiberlyone](https://wordpress.org/support/users/fiberlyone/).
    -  This topic was modified 5 years, 7 months ago by [fiberlyone](https://wordpress.org/support/users/fiberlyone/).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [fiberlyone](https://wordpress.org/support/users/fiberlyone/)
 * (@fiberlyone)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/upload-failed-unknown-error-4/#post-13577795)
 * Sending to developer directly.
 *  Plugin Author [nickboss](https://wordpress.org/support/users/nickboss/)
 * (@nickboss)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/upload-failed-unknown-error-4/#post-13580469)
 * Hi, I noticed something in the shortcode. Check Allowed File Extensions setting:*.
   zip, *.pdf, .jpg, *.jpeg, *.png 
 * There is an asterisk missing before .jpg. It should be like this:  *.zip, *.pdf,*.
   jpg, *.jpeg, *.png
 * Regards
 * Nickolas

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Upload failed! Unknown error.’ is closed to new replies.

 * ![](https://ps.w.org/wp-file-upload/assets/icon-256x256.png?rev=3252590)
 * [Iptanus File Upload](https://wordpress.org/plugins/wp-file-upload/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-file-upload/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-file-upload/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-file-upload/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-file-upload/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-file-upload/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [nickboss](https://wordpress.org/support/users/nickboss/)
 * Last activity: [5 years, 7 months ago](https://wordpress.org/support/topic/upload-failed-unknown-error-4/#post-13580469)
 * Status: resolved