I have similar problems - although my usage habits have not changed over the last two years, in the last few months the usage has gotten much worse. It sometimes shows 5 GB download or more in an evening. Where my data plan time used to last 3 weeks or more, it now gets used in a couple of weeks and last month it only lasted about 1 week. And at the same time, the Hughes Meter has stopped working (for the third time). I use an independent app (Glasswire) to monitor my Internet traffic and it does not indicate the traffic the Hughes Meter shows when it is working.
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