So I share wifi with my neighbors and their router and modem are on the second floor. I live on the first floor with my pc right below their router yet I still experience lag spikes during gaming sessions. My question is will getting a Wifi Repeater solve my lag spike problem, note I cannot install a modem or run a cable on the first floor. I cannot meddle with the modem or router on the second floor either unless neccessary. Will getting a Wifi Repeater solve my problem? If yes please link me to a good one.