Data did not reset at billing cycle - is it not OK to turn off the modem?

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  • Updated 3 years ago
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We turn our modem off when we are not using the system. We have very good reasons for doing this, and our installer absolutely assured us this would not be a problem! However, our data did not reset two days ago at the billing cycle. It still shows *all* last month's usage (5.6GB), and the amount showing available is still 14 GB (our 10 GB plus the four GB "extra" we received after we reported unidentified data usage we were sure was not ours, coincidentally, on the first day of the *last* billing period). This month, we wanted to be absolutely sure there were no first-day issues, so we left the modem off for another day! However, when we turned it on, we found no usage (and my router monitor confirms this) - but also no data re-set. What's up?

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JenniB15

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Posted 3 years ago

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Gwalk900, Champion

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The Modem and the Gateway are in constant communication. That communication is going to include ... Command & Control signals as well as data used and remaining being communicated back and forth between the terminal and the Gateway. The reporting is not "real time" so it is possible, even likely that data being used by unseen processes for example will not be reported to the Gateway and then displayed in your usage meter until sometime after the fact.

Power off the modem breaks that communication chain and increases the delay until sync is re-established.

Frankly, you would be better served by leaving the modem powered up and free to keep in sync with the Gateway but limit your exposure by disconnecting the LAN cable from the rear of the modem.

Disregard the address as these graphics were prepared for something else but .....:

The path for full connectivity:


Disconnecting the Ethernet cable between the Router and the Modem gives you this:


All of your devices are isolated from the net on the WAN side of your Network but are free to communicate with all devices locally on your Networks local side.

At the same time it maintains the "Loop" that exists between the Modem and the Gateway that allows Command & Control to remain established:


The above will limit your usage exposure to zero while allowing the most up to date data info being displayed.