Registered user could not comment on K2 version 2.6.7 and it keeps saying "Name & username already been used" even I already set "Enabled for everyone" in K2 parameters.
Would anyone have the same problem? Please help!

Thanks
Have a great day

Hello Kenny,

"Name & username already been used" means he was logged in when he tried to comment using the email and name of a registered user.

Actually this registered user was not logged in. He wanted to leave comment on other articles but he could not able to. I also tried to comment and same message "The Name or Email Address you typed is already in use!". So that means registered user can't comment on other articles because their name & email address already registered??

Thanks
Have a good day

I have been searching through the forum but there's no solution for this problem in couple years since 2010. There is one said last 11 months ago that :

You need to modify this file

components/com_k2/models/item.php

Remove the following validation code from around line 629

if ($user->guest){
$db = & JFactory::getDBO();
$query = "SELECT COUNT(*) FROM #__users WHERE name=".$db->Quote($userName)." OR email=".$db->Quote($commentEmail);
$db->setQuery($query);
$result = $db->loadresult();
if ($result>0){
echo JText::_('The name or email address you typed is already in use!');
$mainframe->close();
}

}

Is this a real fix??

Thanks