My automatic speed tests are turned off. I've already gone through the various lists of things to check on Unifi gateways. Even then the speed test data counts toward the WAN port counter even though it doesn't for DPI. The WAN port is not DPI. It's strictly bytes that cross that port. The inaccuracies on traffic stats are relatd to DPI. In my case they happen to match. I know in for many they haven't. The real issue here is that the WAN port traffic doesn't match what Xfinity says. That count IS accurate. Even if my gateway is responding with something rather than nothing from some sort of attack, it will STILL count on the WAN port on my UDM. What won't count is any kind of attack that can pass into the modem that doesn't make it to the UDM via the WAN port.
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Was coming here to post a new thread about why Xfinity says my data usage is so much higher than my Unifi stats are saying but I see everyone is having the same issue. As of this writing, it's 16 days into my billing cycle. Xfinity says I've used 525 GB but on only 418 GB have passed through the WAN port between my Unifi UDM and the cable modem. 39.2 GB UP 379 GB down The DPI WAN traffic stats to each device add up to the total that have passed through the WAN port. There's no doubt the Unifi stats are accurate. My data usage as reported by Xfinity is inflated by 25.6%!!!!!!!!! If Xfinity is ALSO correct, then the only way that could happen is if there's more than a 100 GB of data going throgh the modem that never passes through the UDM. ICMP is disabled so it can't be millions of pings taking bandwidth. I guess the next thing to try is to disconnect the UDM from the modem and leave the modem on and freestanding and see if the data counter incrments on Comcasts side. And please no replies about disabling port forwarding or anything like. Those suggestions will help reduce data usage. The issue here is that the data used is not what's actually reported by Comcast. Comcast is reporting more data used than is actually used. Suggestions that prevent data from getting into the cable modem that DON'T get into your router like potentially pings, are useful.
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