I've an WebApp using the 80 port and i have extend it - creating an AAM to Intranet Zone (http://my.new.url.com/). All good for now.
Now, i got a new WepApp for MySites in 81 port, but when i do the same config above mentioned the new url isn't working (http://my.sites.new.url.com:81/) and all i get is a cannot display the webpage message.
I've extend it with no :81 port, editing directly in IIS bindings and internal URLs also with no success.
Any ideas?