A computer implemented method comprises receiving, from each of a plurality of wireless routers, information on connected local devices, including number, type, connection time, wireless band, and wireless channel, wherein the plurality of wireless routers are using a same wireless band and/or wireless channel. The method further comprises calculating, for each of the plurality of wireless routers, a congestion quotient from the received information on the connected local devices, wherein the congestion quotient defines a likelihood of destructive interference at each respective wireless router. The method further comprises determining changes in wireless band and/or wireless channel for one or more wireless routers of the plurality of wireless routers, wherein the changes lower the congestion quotients for each of the respective one or more wireless routers. The method further comprises transmitting the determined changes to each of the respective one or more wireless routers.