Cox WiFi Pods Myth: Mesh Network or Booster?

If you just set-up and powered-up the devices, it's a mesh.  If you had to manually configure the device to connect to your main router, it's an extender.  Mesh devices are pre-programmed to work together.  Boosters/extenders require you to program for your main router.

If you have signal problems throughout your house, mesh is probably your best option; however, your fundamental problem was buying equipment from Cox because it's not very good.  You got ripped.  There are plenty of reviews on the Internet for a better mesh.