What device you have and do you have wifi assist turned on? If you do that's why it is counted up to a point. Wifi assist uses both connections to download something.
Also sometimes some things you are doing going from a data connection to another doesn't always hand off. If there is no delay in what you are doing or an error it kept the mobile data until it is finished. You should see it disconnect going from wifi to cellular. IF it could it would hold onto wifi, but it isn't there and it drops. On Cellular it's there and it keeps until completed instead of dropping and having you start over.
Samsung G550T Android 6.1 No Wi-Fi assist for this phone. Most data
happened at home and while asleep. Data usage stats on the phone say
only a tiny amount of mobile data, but T-mo counts even my WIFI data use
as part of my "data bucket" and therefore says I am over on my plan.
Why do they count WIFI data and not separate it as is done with WIFI
should be download booster.
Not all data acquired throughout the day gets reported as you use it.
We had this discussion a while back the on phone data thing has a disclaimer to rely on what the carrier says because apps at times can hide data usage.
For example I know from time to time Facebook would never report the correct usage. I ended up using the web browser for it to get more accurate results.
Here is another detail. I can't move much. I can't make a cellular call
inside my house because of its metal insulation so almost all my calls are
WIFI. Sometimes i am in my yard, (when it isn't below zero) and can get a
cellular calls then when i am connected to a tower. So, 99% of my data
use is in my home on WIFI. Won't my phone choose the stronger WIFI signal?
Isn't android made to do this automatically?
All T-mo support offered was to upgrade my data plan.
Sent with AquaMail for Android
Samsung modifies it's code, and As with software even Google can't always promise their code will do it's job.
So, nothing has changed in how TMo takes credit for data I use on my home WIFI and then says I have maxed out my plan and slows me down when I DO need to use mobile data when out and about. No code issues here. Most all apps are already prevented from using data in background and only update on WIFI. . It's pretty clear on the monthly report that the connections were via WIFI. The problem remains that TMo still wants to count it against my data bucket even though it was not provided by them.
A surprising disappointment compared to mostly tolerable service. And no, I am not going to upgrade my data plan.