Crawl Error - /wp-app.php/service 403 - PLEASE HELP

Hello,

Recently i recieved this /wp-app.php/service (403) crawl error in google webmaster tools and my website got dropped its rank in the SERP. I decide the problem by adding this line to my .htaccess file : redirect 410 /wp-app.php/service . First i was thinking about disabled in the robots txt but then i change my mind.

The problem was solved for about 2 weeks and the WMTools did not show issues anymore till yesterday. I updated some of my plugins and today i saw that this crawl error is back again... I had check couple of times my .htaccess file in my root directory and also in my wordpress blog by visiting my plugin BulletProof Security ( It has oportunity for manual editing the .htaccess file). Both of them consist the redirect 410 code into and i have tried to re-enter it and do some other research about redirect with coding... but this time the trick did not passed... I disallowed the wp-app.php/service in the robots txt but i am not sure if this is a right decision at all. Please can you help me for solving this issue. Every time i got this error my rank got dropped dramatically... I got pissed off...

Sorry about my bad english too

Best Regards
Atanas

Synthetic,

Did you try disabling remote publishing in your admin console. This will make it so you cannot publish a post without logging into wp-admin but it should resolve the issue.

Here is a detailed post on the subject,

http://blog.unixy.net/2012/10/wp-app-phpservice-401-403-crawl-error-webmaster-tools-resolved/

Hope that helps,

Shawn