Massive Internet Usage for no good reason!

Same here. The dramatic increase in my data usage began on November 16 and got that email for the first time ever that my usage went over the now-allotted 1.5 TB threshold and it’s been going ever since. I had to cut back on watching streams because of this. I never changed anything in my habits, whether it be streaming, updating apps, playing games, or checking email. This is a gross negligence on AT&T’s part and you need to fix it, because I refuse to be charged an extra $10 for every 50 MB because AT&T is exploiting my data usage. Unacceptable.

@ATTHelpForums @ATTHelp You see that we have a very much growing community of YOUR customers all experiencing the same issue with absolutely NO explanation by anyone there. 
@tonydi it was interesting talking to our IT guys at work about this. One had a comment that stuck with me and not sure it’s even a thing, but remember when they were making folks gateways/modems as “open” to allow communities to become one big hotspot? He mentioned that it was happening but couldn’t confirm how to test or even ask ATT to measure it.  Probably not the case, but I can account for everything connected to my network so still scratching my head.

I guess I didn't pick up that the change in cap happened around the same time.  More "coincidences". 

If AT&T had been under-reporting actual use all this time and they knew a big change was going to come when they fixed that, then it stands to reason that they must have known that the new numbers would be about double.  So to off head the screams before they started they bumped the cap, but only 50%?  That's not going to go down well.

@ajliss10   I'm well aware that Comcast did (still does?) that but I don't know about any comparable plan by AT&T to do so. 

@ajliss10 , you can test that theory with something like SSID Insider for a PC or WiFi Analyzer for Android.  Look for alternate SSIDs that have the same MAC address as your SSIDs.  Or the same signal strength at all the same places as your SSIDs.  You won't find any.  AT&T doesn't do it.

Update!! Was told I need new equipment after they ran a test. Not sure if I believe that but we'll see. Regardless I've been taken care of by the retention team. Stay on them, I spent a lot of time on the phone. Several supervisors and cs agents later the retention team called me out of the blue and handled it the way they should've from the beginning. Retention team was great. I received new equipment, bill credits, a heavily discounted upgrade, and free unlimited data. She was great gave me more than I asked for and I'm thankful I finally got a good one.

I sent a message to some of you for account information. Get it to me when you can. 

A network contact reached out yesterday and wants to start investigating this. 

ChrisZ

I called AT&T and explained the whole problem a few days ago. CS rep was going to "investigate" and call back same day but of course hasn't. Now I gotta find time to call again and hopefully the rep put accurate notes in their system. This data spike thing is a huge hassle.

ChrisZ, I'm disappointed that I didn't get a DM requesting my account #. 

Omg same issue for me, averaged 550gb month all last year till getting the overage email from Att, hit 2100 in Dec and am currently on pace to go over for Jan. Att replaced modem which had no effect. Support will not answer direct questions only to suggest we go to unlimited data for added $30 per month. Have wasted too much time on the phone to no avail. Time to switch it appears.