Сайт редиректит на главную

Ребят помогите разобраться сайт открывается и с www. и без, хотел эту проблему поправить, но по ходу выявил непонятные выборочные редиректы, например:

По этим ссылкам сайт открывается

http://edvan.by/ru/news/rasprodazha

http://edvan.by/ru/news/koronki-bimetallicheskie-po-metallu-po-derevu

Но если к темже ссылкам добавить WWW. он редиректит на главную:

http://www.edvan.by/ru/news/rasprodazha

http://www.edvan.by/ru/news/koronki-bimetallicheskie-po-metallu-po-derevu

В тоже время если открыть еще одну ссылку, она работает и с WWW и без него..и никаких редиректов:

http://www.edvan.by/ru/news/bity-shestigrannye-dlya-shurupoverta

http://edvan.by/ru/news/bity-shestigrannye-dlya-shurupoverta

...и таких примеров масса..., в чем закономерность, и почему так, никак не могу понять.

Сайт на Joomla раньше практически никогда с ней не сталкивался, может это какая-то ее особенность?...или косяк?... Подскажите куда смотреть, где искать?

P/s в .htaccess ничего не прописывал, вроди родной...

##



##

# READ THIS COMPLETELY IF YOU CHOOSE TO USE THIS FILE!

#

# The line just below this section: 'Options +FollowSymLinks' may cause problems

# with some server configurations.  It is required for use of mod_rewrite, but may already

# be set by your server administrator in a way that dissallows changing it in

# your .htaccess file.  If using it causes your server to error out, comment it out (add # to

# beginning of line), reload your site in your browser and test your sef url's.  If they work,

# it has been set by your server administrator and you do not need it set here.

##



## Can be commented out if causes errors, see notes above.

# For security reasons, Option followsymlinks cannot be overridden.

#Options +FollowSymLinks

Options +SymLinksIfOwnerMatch



## Mod_rewrite in use.



RewriteEngine On



## Begin - Rewrite rules to block out some common exploits.

# If you experience problems on your site block out the operations listed below

# This attempts to block the most common type of exploit `attempts` to Joomla!

#

# Block out any script trying to base64_encode data within the URL.

RewriteCond %{QUERY_STRING} base64_encode[^(]*\([^)]*\) [OR]

# Block out any script that includes a <script> tag in URL.

RewriteCond %{QUERY_STRING} (<|%3C)([^s]*s)+cript.*(>|%3E) [NC,OR]

# Block out any script trying to set a PHP GLOBALS variable via URL.

RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]

# Block out any script trying to modify a _REQUEST variable via URL.

RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})

# Return 403 Forbidden header and show the content of the root homepage

RewriteRule .* index.php [F]

#

## End - Rewrite rules to block out some common exploits.



## Begin - Custom redirects

#

# If you need to redirect some pages, or set a canonical non-www to

# www redirect (or vice versa), place that code here. Ensure those

# redirects use the correct RewriteRule syntax and the [R=301,L] flags.

#

## End - Custom redirects



##

# Uncomment following line if your webserver's URL

# is not directly related to physical file paths.

# Update Your Joomla! Directory (just / for root).

##



# RewriteBase /



## Begin - Joomla! core SEF Section.

#

RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

#

# If the requested path and file is not /index.php and the request

# has not already been internally rewritten to the index.php script

RewriteCond %{REQUEST_URI} !^/index\.php

# and the request is for something within the component folder,

# or for the site root, or for an extensionless URL, or the

# requested URL ends with one of the listed extensions

RewriteCond %{REQUEST_URI} /component/|(/[^.]*|\.(php|html?|feed|pdf|vcf|raw))$ [NC]

# and the requested path and file doesn't directly match a physical file

RewriteCond %{REQUEST_FILENAME} !-f

# and the requested path and file doesn't directly match a physical folder

RewriteCond %{REQUEST_FILENAME} !-d

# internally rewrite the request to the index.php script

RewriteRule .* index.php [L]

#

## End - Joomla! core SEF Section.



AddType text/x-component .htc

AddDefaultCharset utf-8