@TheNewbie92 You'll probably need to give a bit more information, like what Deco units you're using and if you're wanting to set up a staff network, customer network, which networks you want to change passwords for, etc. My guess is that you'll want to change the customer password weekly? If you're using a  mesh network then you won't need to change the AP passwords individually, they all use the same network and WiFi login details are shared across all 3. If you're using cheaper range extenders you'll probably need to change them individually.

  @TheNewbie92 Try to think of it this way, the ISP router will essentially provide the internet to your X20 units. The WiFi on your ISP router can be switched off completely and you can use the WiFi network on the X20 units. All 3 of the X20 units can be configured to use the same network and you won't have to change the passwords for each one. You can set up two networks using the Deco app on your phone:

• Main network: You can use this for yourself and employees and don't need to change it every week. You can even hide the network so customers can't see it
• Guest network: This is publicly available to your customers, and you can change the password weekly or however often you like

Both of these networks will work across all 3 of your Deco X20 units, and you can disable the ISP WiFi completely.

Hope this helps and I'm properly understanding what you want to do!

  @TheNewbie92 No, without getting too technical the ISP router is capable of handling all of the router functions, and the X20 units can all be set in AP mode to connect your WiFi devices. You will lose some of the extra functionality of the X20 units (some features like Quality of Service only work in router mode) but it's the simplest layout for your network.