Unfortunately, they do need to be used as range extender. I'll try to check the IP addresses of both range extenders and make sure that they're different. Tahnks for the suggestion

Model : Hardware Version : Firmware Version : ISP : I need to extend the network for a small shop that has three floors. The router is a 2.4 Ghz band only router but the 2.4GHz is so crowded, that I...