Extender basically extends existing wifi network while repeater rebroadcasts the wifi signal creating a new wifi network with better signal strength but because of this the wifi network speed(so for 300mbps wifi N connected at typical 100mbps speed it will be reduced to 50mbps) is half of original.
You have to balance the position, if extender is too far from router then it is not much different than directly connecting to router with very less speed & if it is too far from device then again you will face same issue of weak signal strength.
How far is the distance from the main router to weak signal strength area? Best option would be to use another cheap wifi router as wired extender by connecting it via lan wire to main router & place it in/near area of weak signal strength.
@kg11sgbg is using a wifi extender.
You have to balance the position, if extender is too far from router then it is not much different than directly connecting to router with very less speed & if it is too far from device then again you will face same issue of weak signal strength.
How far is the distance from the main router to weak signal strength area? Best option would be to use another cheap wifi router as wired extender by connecting it via lan wire to main router & place it in/near area of weak signal strength.
@kg11sgbg is using a wifi extender.