Hello. I have a problem regarding advertising in hotspot. When I activate advertising, write some url, the popup window instead going to that URL is going to my_mikrotik_ip/URL
like “http://your_mikrotik_ip/http://www.google.com/” ? or without http://? 
without http://. eg: when i write in advertise www.google.com, the popup goes to http://MK_IP/google.com or if i setup DNS to http://MK_NAME/www.google.com
you should use full URL, I think. add ‘http://’
“www.google.com” is not a website name, it’s general computer name =)