Phpbb bridge

[robato]

I installed the extension phpbb bridge in order to integrate phpbb forum in my Joomla site (http://www.ornskoldsvikshusbilsklubb.se/forum), but I have a problem when I log in and try to access the forum. I get an error message saying: Firefox has detected that the server redirects the request on this site in a way that prevents the completion.
If I use IE I can't access the site at all, it just keeps loading for along and after a while I get a message: This page cannot be displayed.

I can access the integrated forum if I don't log in to the forum.

It seems to me that Joomla and Phpbb are redirecting to each other but I have no idea how to solve it, any ideas?

[robato]

I have a little update, the problem only occurs when I register through phpbb3. If I first register through Joomla I don't get this problem. I would guess that there's som problem in the .htaccess file so I submit and hope that someone can help me find out what's wrong.

Code in .htaccess

###
# @version $Id: htaccess.txt 13415 2009-11-03 15:53:25Z ian $
# @package Joomla
# @copyright Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
# @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
# Joomla! is Free Software
##

#####################################################
# 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.
#Options +FollowSymLinks

#
# mod_rewrite in use

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} /phpbb3(\/?)$

RewriteRule (.*) /forum [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpbb3/index.php
RewriteRule (.*) /forum?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpbb3/ucp.php

RewriteRule (.*) /forum/user?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpbb3/viewforum.php

RewriteRule (.*) /forum/forum?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpbb3/viewtopic.php
RewriteRule (.*) /forum/topic?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpbb3/memberlist.php

RewriteRule (.*) /forum/members?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpbb3/report.php

RewriteRule (.*) /forum/report?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpbb3/posting.php

RewriteRule (.*) /forum/post?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpbb3/mcp.php

RewriteRule (.*) /forum/moderator?%{QUERY_STRING} [R=301,L]

########## 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!
#
## Deny access to extension xml files (uncomment out to activate)
#<Files ~ "\.xml$">
#Order allow,deny
#Deny from all
#Satisfy all
#</Files>
## End of deny access to extension xml files
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
# Block out any script trying to base64_encode crap to send via URL
RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
# Block out any script that includes a <script> tag in URL
RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%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})
# Send all blocked request to homepage with 403 Forbidden error!
RewriteRule ^(.*)$ index.php [F,L]
#
########## End - Rewrite rules to block out some common exploits

# 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
#
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !^/index.php
RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$ [NC]
RewriteRule (.*) index.php
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
#
########## End - Joomla! core SEF Section