Check out Grandstrem's YouTube channel for their step-by-step video tutorials.
Everything you need to know to setup and use Grandstream routers, managed switches and access points with the free cloud controller on their GWN cloud portal.
Sign up for your free cloud controller here: https://www.gwn.cloud/
It's completely free of charge and as powerful as you want it to be.
See the video tutorials here: https://www.youtube.com/watch?v=6emuF0ivo-Y&list=PLQjqIzhEDsL5WF3BdaBs7gTxXclCfYn6O&index=2