Monitor Data Usage on Your Router. The problem with typical bandwidth monitoring solutions is that they monitor Internet connection usage on a single device. To measure all the data flowing in and out of your home network, you’d need to measure the data usage on your home router itself.ome third-party software programs can use the SNMP monitoring protocol to talk to a router and expose its bandwidth usage, among other networking statistics. However, there’s a good chance your home router doesn’t support SNMP.