I have a php.ini file with the following Code: <?php upload_max_filesize = 20M This causes peoples' passwords to not work when logging in, they just get the error: Incorrect password. Please try again. As soon as I remove the php.ini file everything is fine again. I have the same php.ini file on other sites (Wordpress) on the same server so I don't see how this can be an issue with the host, in fact I've asked them and they say if it is fine with wordpress it should be fine with xenForo. There is nothing on the server that should cause this. Can anyone help please?