Giving the same name to extender network

[jrl95608]

If I give my extended network the same name as my router network, how do I force a device to connect to the extended network? How do I know devices that are connected to the extended network rather than the existing router network?

[plemans]

If you're using a mesh extender or just setting the ssid's the same, then you're devices are doing the roaming. 

If you're wanting them seperate, then name the ssid's different.