I have an RB750 (v5.4) setup as a hotspot. If a user on a laptop goes to a website such as Pandora.com, Pandora plays correctly. But if a user has a Roku box, Pandora won't play. If I give the Roku box an IP binding (bypassed), then it will work.
Some sites do work without an IP binding. One site is Crackle.com.
I'm new to MikroTik products, so I would appreciate any help.