Wordpress Issue with xmlrpc

I am using xmlrpc to post in my blog. There were no issue with the old version but since I moved to centminmod latest version, I am seeing errors:

---

POST /xmlrpc.php HTTP/1.0
Host: XXXXXX.com
Content-Type: text/xml
User-Agent: The Incutio XML-RPC PHP Library
Content-Length: 2810

<?xml version="1.0"?>
<methodCall>
<methodName>metaWeblog.newPost</methodName>
<params>
<param><value><string></string></value></param>
<param><value><string>link</string></value></param>
<param><value><string>8)FkP#fTTv9aRuKznGYvcC3</string></value></param>
<param><value><struct>
<member><name>description</name><value><string>XXXXXX</string></value></member>
<member><name>title</name><value><string>XXXXXX</string></value></member>
<member><name>post_status</name><value><string>publish</string></value></member>
<member><name>categories</name><value><array><data>
<value><string>XXXXXX</string></value>
</data></array></value></member>
<member><name>mt_keywords</name><value><string>The,Carbonaro,Effect,S02E10,Thats,Voodoo,720p,HDTV,x264,W4F</string></value></member>
</struct></value></param>
<param><value><boolean>1</boolean></value></param>
</params></methodCall>

HTTP/1.1 200 OK
Content-Type: text/xml; charset=UTF-8
Content-Length: 403
Connection: close
Vary: Cookie
Date: Mon, 12 Oct 2015 05:26:56 +0000
Server: nginx centminmod

<?xml version="1.0" encoding="UTF-8"?>
<methodResponse>
<fault>
<value>
<struct>
<member>
<name>faultCode</name>
<value><int>403</int></value>
</member>
<member>
<name>faultString</name>
<value><string>Incorrect username or password.</string></value>
</member>
</struct>
</value>
</fault>
</methodResponse>


I removed these from config file, but no help:
location ~* /(xmlrpc\.php) {
limit_req zone=xwplogin burst=2 nodelay;
#limit_conn xwpconlimit 30;
include /usr/local/nginx/conf/php-wpsc.conf;
}

 

Sorry, I did something wrong, not related to the plugins

Thanks