Internet sharing on Lumia 925 tested (iOS, Android, Debian, Win10)

Although Windows 10 has been successfully deployed worldwide, with only Microsoft haters refusing to admit its merits, Windows 10 Mobile has been repeatedly delayed and Lumia owners will have to settle for the unstable build available from the WP Insider program or continue using the Denim or Cyan release. If you're using the well-received Lumia 925, you've probably been stuck on Cyan for awhile now with Microsoft canceling Denim updates for the device prior to the Windows 10/Windows 10 Mobile announcement.

Internet sharing using the Lumia 925 with Cyan works well enough but the hardware behind the 925 doesn't make it an ideal wireless access point. If you're using a mobile data service that maxes out at 2G or slower, then it can be a frustrating experience funneling data from your 925 to your other devices.

To set up Internet sharing on Windows Phone:

1. From the Start screen, tap Settings > Internet sharing.
2. Tap the On/Off switch.
3. Select Bluetooth or WLAN.


Note: Selecting Bluetooth as your Internet sharing method on your Windows Phone isn't recommended if you plan to access the WP hotspot using Android, iOS or Linux. Depending on your Linux distribution, Bluetooth Internet access requires additional setup. Fedora and Debian needed additional tweaking to pair with the Lumia 925 and even then struggled to maintain a data connection.

4. If you want to change the SSID or WLAN password, tap the Options button then tap Setup. Input the new broadcast name and password then tap the OK button.


The Qualcomm Snapdragon S4 noticeably heats up when you use the Lumia 925 as an access point. The device will gradually cool down and then heat up again the longer you have data access enabled. The temperature doubles if you actually have the Lumia 925 connected to a power charger plugged into a power socket although there's no increase in heat if you're charging via a USB port. It goes without saying that you probably won't want to hold the device while you're using it as your Wi-Fi source.

My iPad 2 running iOS8, MemoPad HD7 running Android 4.2.2 and Toshiba NB520 running Debian 8 Jessie all detected and connected to my Lumia 925's hotspot. 

Note: The Lumia 925 can support up to 8 devices at a time but I tested each mobile device, a Windows 10 mini-PC and the Debian laptop separately due to the slow 2G connection.


The MemoPad HD7 connecting to the Lumia access point.


Debian 8 Jessie with Xfce connecting to the Lumia smartphone.

Unfortunately, it was difficult to gauge how well the Lumia 925 was transmitting data because I was hobbled with a China Mobile data connection, which is well known for its lag when it came to sites outside China. As a footnote, however, the MemoPad HD7 running a dated Jelly Bean release fared better than the iPad 2, which failed to display even basic web pages using Safari. Debian 8 Jessie also connected to several sites with the NB520's Intel wireless card but China Mobile's service felt like dial-up more than the advertised 2G/3G service available in Guangzhou. 


Note: Windows 10 on a Zotac ZBOX Nano also had no problems accessing the Lumia access point and Edge performed as well as could be expected even on a slow connection.


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