Title: Permalink – changing format – error
Last modified: August 19, 2016

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# Permalink – changing format – error

 *  [phil-richards](https://wordpress.org/support/users/phil-richards/)
 * (@phil-richards)
 * [17 years, 4 months ago](https://wordpress.org/support/topic/permalink-changing-format-error/)
 * I changed my permalink structure from Default to Month + Name.
 * When I clicked on the Recent posts link I got an error page
 * CGI Error
    The specified CGI application misbehaved by not returning a complete
   set of HTTP headers.
 * Can anyone advise what to do ?

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

 *  [Samuel B](https://wordpress.org/support/users/samboll/)
 * (@samboll)
 * [17 years, 4 months ago](https://wordpress.org/support/topic/permalink-changing-format-error/#post-966104)
 * are you on a windows server?
    [http://codex.wordpress.org/Using_Permalinks#Permalinks_without_mod_rewrite](http://codex.wordpress.org/Using_Permalinks#Permalinks_without_mod_rewrite)
 *  Thread Starter [phil-richards](https://wordpress.org/support/users/phil-richards/)
 * (@phil-richards)
 * [17 years, 4 months ago](https://wordpress.org/support/topic/permalink-changing-format-error/#post-966248)
 * Thanks, yes we have IIS, I will try what was advised.

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

The topic ‘Permalink – changing format – error’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [phil-richards](https://wordpress.org/support/users/phil-richards/)
 * Last activity: [17 years, 4 months ago](https://wordpress.org/support/topic/permalink-changing-format-error/#post-966248)
 * Status: not resolved

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