On November 23, 2016 3:39 AM I received an alert from Xfinity that out data usage was at 90% of the 1 Terabyte limit.
August 23 2016 X1 platform was added and used only for watching TV, not streaming (no netflix or other internet features used). Data has gone up steadily since then:
August 2016: 165 GB
September 2016: 659 GB
October 2016: 1175 GB
November: now exceeded 1 TB
11-25-2016 called customer solutions and spoke with Brent (8FA) from solutions. He said that we would need 15 gamers running 24/7 to use this much data up and must be a problem. Brent transferred from me to Roland in security; then Jellene in security level 2 in Dominican Republic. When we hen we ked to be transferred to US she hung up on us! Brent apologized and said these were subcontractors that they could not control. (over 1 hour on phone)
8 PM: Brent called back and advised was escalating to security level 2.
I called tech support at 1:13 PM. US rep transferred me to Manila, then
transferred me to Jake in Dominican Republic who said "X1 box definitely the problem"
escalated to next level - they will call w/in 2-3 days.
I spent 12 hours 11-26-2016 checking and confirming the legitimacy of every single device MAC address, and changing our internet access passwords on all devices. No unauthorized devices were found. There is no evidence that any device is using data in our home, as we are family of 3, both parents work and one child in school all day. Only one computer on during day and not active. Scanned all computers for viruses with Defender, Norton, Spybot and Malwarebytes and all clean.
11-26-2016: Watched one movie from Xfinity ON DEMAND (Neighbors 2) and added 20 GB to our usage, as received message at 9:39 PM that we went over the 1 TB limit.
From internet forums appears others are having similar problems and I repeated this experiment with similar results: http://forums.xfinity.com/t5/Your-Home-Network/Re-Sudden-Change-in-Data-Usage/td-p/2465589.
Please look into this as we loyal paying customers with excellent credit and do not want to incur data charges for something we are not using. If this persists we will be forced to cancel our service and use another provider.
... View more