Windows Phone should and does always prioritize WiFi over your mobile 3G data connection if WiFi is enabled when you are using your phone.
When the phone is not used and the screen is turned off, WiFi will be turned off as well. Unless the power adapter is connected, then WiFi will not be switched off, and the phone will keep using WiFi.
There are many situations
Plugged out and the screen is unlocked: It will prefer Wifi over 3G.
Plugged out and sleeping (display off): If your phone is sleeping in your pocket and you have 3G and WiFi turned on it will not use Wifi. It because when sleeping the phone automatically turn of Wifi.
Plugged in: The phone will prefer Wifi even when sleeping.
You currently cannot update it without a Wi-Fi connection. A few possible workarounds:
Share your laptop's internet connection—most laptops should be able to share it via their Wi-Fi adaptor, if not you can always pick up a USB Wi-Fi dongle for a few dollars
You mention that you also have a Lumia 925, setup a Wi-Fi hotspot on one of your phones to share ...
If you look at your phone and you are connected to a wifi network you'll see a wifi icon. If the wifi icon shows the connected state you're using your wifi connection.
more information on prioratizing between 3g and wifi can be found in this question:
Does Windows Phone prioritize between using a data plan and wi-fi connection?
on a side note: the wifi ...
I have the same issue and it is very annoying. I believe it's a firmware issue as I didn't have the problem with the original firmware - it started after a firmware update. For now I have only Wi-Fi activated and then I have to switch manually to data connection if I have no Wi-Fi within range. I so much hope there will be a new firmware update that solves ...
If you disable WiFi and connect your phone using the USB cable and open Zune, your phone should be using the internet of the computer automatically. If you now use http://www.wireshark.org/ you can see the actual traffic.
Whether a secure connection is used depends from application to application, so one could go and create a community wiki answer to list ...
I don't know technically if it turn some hardware off but indeed if you set to a lower connection speed your phone will stop to search for this.
Imagine you are in some place here 3G is good but 4G not. If your phone has the connection speed set to 4G it will keep trying get this speed for you. But if you set to 3G as soon as it gets a 3G network its stop ...
It sounds like this might be for data restored from cloud backups when upgrading or resetting the OS, but a) I always do this sort of thing on Wi-Fi...
You are referring to when you download a backup from the cloud to restore the phone. However, periodically, WP has to upload the existing state of your phone to the cloud.
Items uploaded may include (and ...
There are a lot of background tasks to use the network
To name few:
Store checking (and downloading) app updates
Other services you use to sync your stuff (OneDrive, DropBox, etc...)
Apps that run in background (such as Skype, Hike, WhatsApp, etc...)
Automatic OS updates
Sending of Feedback data
To answer your question
Now I am little ...
Unfortunately they don't have this option in Windows 10 Technical Preview.
Best way to address this is to give feedback to Microsoft using Feedback App (Shortcut: Press Volume Down and the Power button at the same time).
No, it's not possible to create a shortcut to that screen (at this time).
The Mobile+SIM screen was updated in Windows Phone 8.1 to accommodate dual-sim phones. The details for each SIM now have their own separate page.
Along with the OS preferences, each app can prioritize network connection. In my apps I always check to see if the user is connected to wifi before sending or receiving large amounts of data.
For instance, in one of my apps that handles recorded video, I firmly warn the user that they are not connected to wi-fi. If they are already connected to wi-fi the ...
Under Settings->Mobile Network it is possible to turn your data connection off. Once you have done this the only option left to your phone is Wi-Fi. Which could then be used to check if Bing is returning results to see if you have an internet connection.
To really prove the phone is not using the mobile connection, you could even take the sim card out.
Following Perrucci, Fitzek and Widmer (2011) WLAN is more power efficient than 3G. A publicly accessible excerpt of their results can be found on their website. Note that in their study, the access point was placed fairly close to the cell phone.
The same conclusion has been made by Carroll and Heiser in their 2010 USENIX conference contribution, measured ...
You can customise which quick actions appear in the action centre.
Simply go to Settings → notifications+actions, tap on any of the quick actions there and choose a new one. Mobile data on/off is available since Windows Phone version 8.10.14219.341.
For more information, see the Notifications and quick actions how-to at WindowsPhone.com.
As a workaround to be able to input my APN settings, I download the Nokia Access Point app which adds a new options under Settings called access point which allows me to define a new Internet/MMS APN.
To get this app, scan this QR code:
Yes, this setting an be set by going to Settings -> Network & Wireless -> Mobile & Sim
From there, tap the link for SIM settings you'll then see an option to choose the fastest connection speed to use (which, on my phone, gives the options of 3G or 4G)
I had one such issue - This happens often when i view / stream videos in my lumia 1020.
Steps that i did;
1. Reset the data counter - default
2. Turn off the phone
3. Remove sim and replace it
4. Reboot the phone
5. Search network provider - and select your operator manually
6. Then select Automatic [Only if required and if the signal strength is low]
You can install an app called 'Cellular Data'. Pins to the start screen and displays the status of the cellular connection (on/off):
I am having this issue, (not getting notifications, and not getting them at all) but when I turned off my WIFI on my LUMIA 520, then all the sudden the notifications started working again. I turned WIFI back on (and am connected to my home signal) and the notifications stopped working.
I suppose it would be possible. Read reviews on the app before you download for any issues others may have found. Also, if an app with the same capabilities is made by a well-known developer, it is generally "safer" to download that app, if you are worried. Finally, you could use Data Sense to see if the app is consuming more data than seems necessary.
Try switching between using the older network standard and the newer on the phone, and then see if you can visit websites using the newer after that.
If that works, then maybe Microsoft (or AT&T since it can be a problem with them) will listen to you if you report that.
Try setting up an access point manually from settings section. Before that turn off cellular data.
You will be required to go to, settings >> access point. Tap "add" application bar button. Give your access point name (you will get it from your operator, in my case its "blweb" as my operator is Banglalink3G). fields like username, password, proxy address, ...
As mentioned in the comments, there appears to be an issue in the People and Me Hub on Windows Phone 7 and 8 where it uses a lot more data than normal.
Unfortunately, on Windows Phone 7 there is no way to monitor data usage on a system level. On Windows Phone 8, if you're running GDR2 (or newer), Data Sense will give you a break down of what each (system) ...
It is normal. You have to switch off mobile data if you want your WI-FI to auto-search in range connections. If you keep both active, then your phone will switch betwen them as long as one of them become unreachable :)