Adding 2 pack adapter powerline to exhisting Range Extender TL-WA850RE
In my home network the router is in the ground floor, in a not central zone of the house, and I have a range extender upstairs. The result is very poor.
I am thinking of buying a powerline kit TL-WPA4221 AV600 and put 1 adapter near router, the other in the center ground floor and maintain the extender upstair.
Is it possible to set the extender via wifi with the powerline wifi network?
Or the extender will continue to be connected via wifi with the router and to get better results it is prefereble a 3 pack powerline kit?
Any ideas or suggestions will be much appreciated, thank you!