WEB INTERFACE
Linksys updates the FW of the EA6900 quite frequently so we strongly suggest heading over to their support page to download and install the latest version.
After installing the EA6900 the moment you launch IE you will be redirected to the setup screen. Here you can either use your cloud account credentials to gain remote access (if you have an account, if not you can make one) or access the router locally.
The web interface looks great and is very easy to navigate.
From here you can check the connected devices, enable/disable guest access along with the number of guests, enable/disable parental controls, setup media prioritization either for applications or games (the EA6900 has many preloaded ones), share files and folders on attached USB drives, perform FW updates, setup internet connectivity, check device status, perform diagnostics and finally you can adjust the various security options for the wireless connectivity of the EA6900.