Hi Saron, the Cox data usage meter measures traffic passing through a subscriber’s cable modem within +/-1%. The meter has shown a bias toward undercounting, which benefits customers. Pages 9-11 of the Netforecast independent third party assessment (PDF) of the Cox Data Usage Meter (
www.netforecast.com/.../NFR5125_Cox_Internet_Usage_Meter_2016_Accuracy_Audit_Report.pdf) explains what data is counted and where the data should be measured. Were you able to account for the two-day spike in data that occurred in your last usage cycle? Did anyone in your household get a new networked device? Do you have internet-connected security cameras? Have you had any recent visitors who may have used your network? Does anyone in your home watch streaming services such as Netflix? Usage still incurs if the content is left on overnight, even if someone is not actively watching it. Do you have any gaming platforms that may have downloaded game updates or new games on those days? -Becky, Cox Support Forums Moderator