what hardware do you have for the home security router? Netgear wifi router or the xfinity wireless gateway?
If the Netgear router, do this.
Cable modem into Netgear router and then a cable into your wifi router. Put the printer on the wifi network as that model supports wifi.
If the Netgear router, do this.
Cable modem into Netgear router and then a cable into your wifi router. Put the printer on the wifi network as that model supports wifi.