Forums / Cotonti / Support / auto-logged out if using url_rewrite and not checking "remember me" box

Sorry, I've missed this message. No, random number (like sed_unique) won't work because it changes every request. The 'alphanumericalstring' seems like what I really meant. Yes, PHP sessions are tied to the same domain by default so you need to change php.ini to make it support subdomains... or enforce "remember me" like you did.