@T25_Ladydriver Hi, What is the exact model description of your TP-Link device? This information should be printed on a label that is placed on the backside or bottom of the device.

@Bitdleg Ok. So, do you know the wireless password the range extender uses to connect to the landlord's wireless network? If yes, then can you get proper Internet when you connect your phone or...

@Doggie17 It is very common that for the initial setup of IoT devices the manufacturers require the user to connect their phone to the same network they want to connect the IoT device to. The...

@Bitdleg Is that "range extender" connected to the landlord's Internet via a network cable or wirelessly?

@Bitdleg Hi, Are you using the range extender to extend the wireless signal of your own wireless router? Or is that range extender connected to the house owners wireless network, given to you to...

@Doggie17 Hi, What is the exact model description of your AC2100 router? Is it the Archer VR2100(v)? Normally routers will have one LAN network for all devices, no matter if connected via 2.4 GHz, 5...