Hi Lea, Thank you for updating us so far. You mentioned that you unplugged the LAN cable with 22% of your data allowance left. So overnight your modem was left isolated until you plugged back in the morning and found the same amount, 22%. This tells us that no data was used and eliminates the modem as a source of unidentified data usage. I don't know why your data reset up to 82%, but look on the bright side, you were given more data than expected! As Staci mentioned, Facebook does have autoplaying videos in their timeline feature, which can use more data than you expect. In addition to that, keep in mind there are countless factors that can use your data: - more devices are capable of connecting to the internet: phones, tablets, gaming consoles, SmartTVs, and even refrigerators can connect wirelessly to the internet. Keep track of what devices you leave running on Wi-Fi. - automatic-updates: your computer and any other programs you use will often keep working in the background, even if you're not actively using that program, in order to keep your system/program up-to-date. Anti-virus programs will periodically use your internet connection to check back with their malware database for any updates. You should have an option to turn off auto-updates and/or schedule them for a later time. - multimedia content: Netflix, Hulu, YouTube, Facebook, Tumblr, Instagram, news sites, and other websites will contain videos, animated gifs, and sound clips that may start playing as soon as you land on the site. So much content, so easily available almost everywhere on the internet. For starters, try disabling auto-play video on Facebook: https://community.myhughesnet.com/hughesnet/topics/how_to_disable_autoplay_videos_on_facebook or adjusting your Netflix playback quality to SD: https://help.netflix.com/en/node/87 To help you monitor your data usage and other performance metrics, we’ve gathered resources for you here, which also includes community recommendations: http://community.myhughesnet.com/hughesnet/topics/track_your_usage_performance_speeds_and_view_tips_.... The most important tool to download is the Status Meter, available in the Customer Support Center, so download that if you haven’t already: supportcenter.myhughesnet.com Another community member has also shared a list of things you might not have thought to check that uses data, so we highly suggest checking it out here: https://community.myhughesnet.com/hughesnet/topics/data-usage-sources-common-and-not-so-common Feel free to let us know if you need additional assistance, we're happy to help. Thanks, Liz
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