First - thanks for your answer :)
The domain is http://auto8-8.no/
The links at the bottom is supposed to send visitors to the subdomains (except the last one who is an external link) like in Chrome/FF/Edge etc.
But in IE11 the page just reloads, and nothing happens. Im completely blank here since (I think) everything is done the way its supposed to be done :(
Like I mentioned - I think its cookie related, but not really sure.