Visitor

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1 Message

Thursday, January 8th, 2026 7:53 PM

Excessive and inaccurate data usage

Having the issue reported by multiple people here: https://forums.xfinity.com/conversations/your-home-network/sudden-spike-in-data-usage/65091e84baecdd4ece0656b7?page=2

My router says we've used roughly 135gb so far this month, while the usage meter from the xfinity site claims nearly 500gb -- not the first time this has happened. Cable modem firmware is up to date (this is automatically kept up to date by Comcast, we aren't even able to update it ourselves) and the router is completely fine and secure.

How do we address this issue with the inaccurate and inflated data usage being reported by the xfinity site?

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Official Employee

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2.3K Messages

18 hours ago

Hello user_d1xoc1 thank you so much for taking the time to reach out here on our Xfinity Forums! When disputes regarding data usage arise, our trained professionals at Comcast Customer Security Assurance can help! 

 

 

Customer Security Assurance
Business Hours: 8:00am - 12:00am EST, 7 days a week

Contact: 1-888-565-4329

 

This team is able to fully investigate network integrity and data usage concerns. 

 

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