Update: 2016-12-15 Preview：3276 For:AC6 V1.0、
This article will guide you how to setup Guest Network and the steps as below.
Model Number: AC6 Question Classification: Function Settings
Step 1：Open a browser then type http://tendawifi.com in the address bar, press Enter. Type in login password, and click “Login”.
Step 2：Click “Guest Network”, set up the name and password of 2.4G/5G Guest Network and save it.
Will it help you?