Help me find our wireless data BLACK HOLE!

Cassady

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Hello all,

I’m at my wits’ end - and I’m hoping someone can give me some suggestions.

We made the switch to wireless in the 2nd week of September.
Fantastic up and down speeds - decided on the 150GB capped option.

Prior to this, we had a 4mb ADSL line, using a Vox Telecom Fatpipe 150gb/month capped option. Most months, our usage would come in at about 100GBs, with plenty rolling over.

Since the 9th of September, we have blown through our 150GB cap, and have been forced to topup with 10GB, 20GB, 10GB and - last night - another 10GB… 200GBs of data, 185GB downloaded, 14.4GB uploaded.

The variable here, is possibly Apple Photos. I began uploading a 140GB photo library into the cloud - and did the bulk of it under the 4mb line. Some last bit of syncing took place under the new wireless setup - but most of it has been synced across all our devices.

That said, my Photos library on my Mac Mini appeared to be stuck trying to download 25 items for several days. Thinking this was possibly the issue - I switched iCloud Photo Library off on the Mini, yesterday late afternoon.

We bought 10GB of topup data at about 18h30 yesterday.
Before getting into bed, 3GB had already been used. We weren’t streaming - kids were watching something through Box Office.
In bed, the SO and I watched some TBBT and Sherlock, on the ATV2, playing off the Mini’s library in the lounge.

This morning - 737mb left. Another 7GB used during the evening!! :wtf:

Now - either what we are watching on ATV2 is somehow contributing to our data usage - is this even possible?? - OR there is still some background downloading/uploading going on somewhere - OR, someone is tapping into our Data, and using it…

ANY suggestions about how one would go trying to identity the data-slurping black-hole that is besetting us at the moment, will be greatly appreciated!

[Below is a screengrab of our usage: The peaks at the start are expected, since the final syncing of photos was taking place. Daily usage is still quite high - and then, there's the mystery peak last night...]

Internet - Usage.png
 
Why don't you start with the easiest thing, secure your wireless connection.
First off: Change your WiFi security to WPA2-PSK AES only and change the password to some random string ~10+ characters long. Don't worry about making it completely random. Also change the router password from the default.
Then start connecting the devices one at a time, leave a 15 minute gap to check if your usage shoots up. Be sure to install something akin to netloader on your devices, if you're using windows 10, there is an option of System > Network & Internet > Data Usage. Android and iOS devices also have it, not sure about Mac but I assume it's built in.

I also suggest you disable WPS.
 
Did the speed of your line increase.

When I upgraded to 10mbps from 4mbps my data usage almost doubled.

Streaming 480p you use around 400mbps per hour. Streaming 1080p you use 1.4gigs per hour. So watching a few hours of tv at high resolution will easily consume 7 gigs.

You either gotta set the resolution down or buy more gigs.
 
Yea Scary is right, if you up the line speed, lets say you go from 4mb to a 10mb line your YouTube and streaming services via any web browser will automatically set themselves to the best available resolution. so it might be that some of the stuff you're watching is in a higher res resulting in you downloading more than what you really should be. Also Facebook has the really crappy feature that plays all the video's in your feed automatically so that also unnecessary bandwidth being consumed. I've always said this, if you're not tech savy get a prem uncapped connection, so if something like this happens you are covered.
 
Probably Apple Photos as you suspect. I posted a thread about this exact issue a while ago (massive data use, and no obvious culprit).

Open up Activity Monitor, Click Network, and see whats using the bandwidth.
 
Can also install Glasswire on your desktop devices for a deeper look if Activity Monitor doesn't provide a "live" culprit.
 
Wrong OS.

Activity Monitor is more than sufficient though, gives decent stats on network usage per app

Really? Could have sworn they had a Mac client.

Bummer.

Activity Monitor doesn't track historically though.

****

I see it's in Beta for Mac.
 
I installed server on my Mac mini and used it as a firewall between my connection and all devices in the house. The firewall logging option was set. Then I set a cron to grab ipfw.log into a database. That database helped me identify my culprit: iCloud
 
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