Questions tagged [wi-fi]

For questions specifically about issues with WLAN network connectivity (via a wireless router) as opposed to questions related to cellular connections (2G/3G/4G, etc.).

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5
votes
6answers
9k views

Can I use my phone as an audio device via Wifi?

Is there any way to stream all audio from my (Windows) PC to my phone via Wifi, so that my phone acts like a sound card? I basically want to use my phone with my headphones as wireless headphones. It ...
2
votes
1answer
44k views

WIFI connection with question mark

My android phone connected with WiFi shows full signal. Whereas question mark appears on the signal mark and I'm unable to connect to the internet. Can anyone give me a solution to reconnect my ...
22
votes
2answers
24k views

How can I stop Lollipop ignoring my wifi network?

Android 5.0 has a new "feature": If a wifi network has no connection to the internet, it will remain connected to it but route traffic over mobile data instead. A small exclamation mark shows in the ...
3
votes
1answer
21k views

Change the server that Android uses for an internet connectivity check?

As far as I am aware, Android checks internet connectivity by connecting to connectivitycheck.android.com. On one of the WiFi networks I regularly connect to, they use web filtering, and block the ...
7
votes
2answers
11k views

How exchange messages between 2 android devices through wifi and bluetooth without internet?

I am currently working on the creation of an application for mobile devices with Android which should be capable of sending and receiving messages through local means like wifi and bluetooth. After ...
29
votes
3answers
122k views

What does the "Aggressive Wi-Fi to Cellular handover" option in Developer Settings do?

In Android Lollipop 5.0, I noticed that "Developer Options" features a checkbox for "Aggressive Wi-Fi to Cellular handover" that is unchecked by default. Does anybody know what this setting does and ...
26
votes
3answers
10k views

Remember wifi password but never automatically connect

I have both my wifi password and my friend's saved. Since they live nearby sometimes it will automatically switch to theirs if the signal is stronger. I don't ordinarily want to use their connection ...
10
votes
6answers
2k views

How can I fix the Wi-Fi button or prevent Wi-Fi errors when turning it off and back on?

Sometimes after I shut off Wi-Fi using the button inside the notification bar drop-down, I can't turn it back on with that button. Hitting the button does nothing, it's not even highlighted. When I ...
18
votes
7answers
27k views

Is there a way to enable WiFi-tethering without root access?

Is there a way for WiFi-tethering without root access. I mean before Froyo. I have HTC Hero 2.1, and frankly, I don't want to root it for security reasons.
15
votes
2answers
6k views

How to prevent Wifi auto-connect without forgetting that connection

In my workplace, we have both "real" and "test" wifi connection points. All are password-protected, with passwords that are difficult to remember. Normally I want to be connected to a real wifi, but ...
10
votes
1answer
6k views

How do I make Android consider my WiFi Access Point as valid (blue?)

We have a very large wifi network at Stack Exchange, and the primary guest network is tightly locked down. Our firewall rules permit essentially just http/https and vpn connections. When our ...
9
votes
3answers
7k views

How can I sync photos to a network drive over wifi?

My current workflow is to snap pics on my Droid, plug it in via USB, and sync the pics. I'd like to just run a script to sync the DCIM folder with a shared network drive, if anyone knows of a way that ...
6
votes
3answers
26k views

How to connect to PEAP MSCHAPv2 Wi-Fi using system certificates in Android 7.1 Nougat?

Android 7.1 has introduced some changes to Wi-Fi connection interface. In 6.0, when selecting PEAP MSCHAPv2 in Wi-Fi connection interface, there were no CA certificates available (unless some had been ...
6
votes
2answers
6k views

How to auto-backup my phone internal storage to my PC (not cloud), using WiFi?

I'm looking for a method to automatically backup my internal storage from my Nexus 6 directly to my PC (not cloud), using WiFi, but I haven't really found a solution for it. I see most solutions use ...
4
votes
2answers
16k views

How can I install wpa_cli on my rooted device?

I rooted my device, then I go to adb shell and type su to enter wpa_cli. I was surprised that wpa_cli: not found appeared, although I get information when I type wpa_supplicant. I know that wpa_cli ...
3
votes
7answers
11k views

Move photos from Android to PC wirelessly *in one step*

My Motorola Droid RAZR Maxx HD is full of pictures. I have Windows 7, the USB cable, WiFi and Bluetooth. Photos are stored both on internal storage and overflow onto the SD. I want to take all photos ...
22
votes
2answers
2k views

If I use free WiFi in a hotspot, can data be easily sniffed?

If I use my mobile device in a Wifi hotspot, can I take it that it bears the same risks as using a laptop in that data can be easily sniffed and that the mobile device is also open to man-in-the-...
18
votes
2answers
3k views

Restrict market updates to WiFi network

In order to save some volume on my data plan, I'd like to limit updates from the market to the times when I'm connected to a WiFi. And as every good geek, I want this to be automated, in other words, ...
8
votes
9answers
424k views

Wifi keeps disconnecting and reconnecting frequently

I have an android phone running 4.2.2. I am using TP-LINK ADSL router and the connection is stable. But everytime I open an app that tries to access internet, my connection keeps connecting and ...
8
votes
7answers
23k views

How do I "forget" an out-of-range Wi-Fi network on a Galaxy S7?

I want to remove old saved networks that are no longer in range. I can forget visible networks, but out-of-range networks are not visible anywhere so I can't do the standard long-tap => "Forget ...
5
votes
2answers
51k views

How to set up a network connection between Android phone and Windows PC without Internet

Is it possible to connect my Android phone (Galaxy S3) directly to my Windows (7) PC in such a way that I can make network connections to the PC from the phone, without a pre-existing WiFi network? ...
7
votes
3answers
2k views

Is 150 MB / month enough for limited use? [closed]

I've been thinking about getting a pre-owned Samsung Fascinate from Verizon for $40. I can't afford a $30/month unlimited data plan, but I was considering the $15/month 150MB data plan. I'm planning ...
7
votes
1answer
17k views

How does Android sync the WiFi Profiles?

I'm using Jelly Bean on a tablet and a phone on the same account. After logging into a particular wifi network on one device, I noticed that sometime later (weeks) the other device had some acquired ...
6
votes
1answer
26k views

Battery life difference for 5 GHz vs 2.4 GHz WiFi - which is better

Are there any difference for phone battery life when connected to 5 GHz access points vs connecting to the same at 2.4 GHz?
6
votes
1answer
2k views

How to make an unrooted phone use or detect ad-hoc Wi-Fi?

I have an unrooted Android 2.3.6 phone and I want it to connect to the ad-hoc connection made on my Ubuntu. I referred to some already existing questions here but none seem to be the solutions for ...
5
votes
2answers
4k views

Problem with connection to home Wi-Fi - how to debug?

My Android device (GT-S5570 running 2.2.1) is having connection problems with my home Wi-Fi network (ZyXEL adsl P-660HW-D1). The device connects ok, gets an IP address, and sees all other computers on ...
4
votes
3answers
9k views

No option to choose "Do Not Validate" under "CA certificates" when connecting to PEAP/MSCHAPV2 WiFi (Android 11)

I can't connect to campus WiFi anymore after installing latest ROM with december 2020 security patches. The configuration is PEAP/MSCHAPV2. Under CA certificate, we usually choose "Do not ...
3
votes
2answers
9k views

Some apps cannot access the internet

After my Android Lollipop upgrade on my HTC M8, some apps are unable to access the internet such as Twitter, but Facebook works perfectly fine. WhatsApp works fine except that I'm unable to receive ...
2
votes
4answers
11k views

My Samsung Galaxy Ace disconnects from Wi-Fi when sleeping even after setting the Wi-Fi sleep policy

I asked this question and found that normally setting the Wi-Fi sleep policy to Never would prevent my device from disconnecting from Wi-Fi when the screen is off, but it's not working. Even after ...
1
vote
1answer
8k views

Set Open DNS in Android 5.0.1

Just updated my Oneplus One to Android 5.0.1, and I can't change the DNS when I select the "Static IP" option in Wi-Fi settings. Basically I can put the values in, there is just no way to press OK and ...
10
votes
7answers
12k views

Is there a way to copy files directly between two Android devices on the same wifi network?

I now have a Samsung Galaxy S Android phone running Froyo 2.2.1 and an Archos 101 Android tablet - also running Froyo. Both are 'connected' to the same home network via wifi. Is there a method by ...
8
votes
3answers
9k views

How can I disable cellular data on an Android device?

Can I easily disable cellular data on an Android device and just use Wi-Fi? Does this change based on whether or not I have root on the device?
8
votes
5answers
21k views

Always seeing "No connection: Retry" in Android Market

I have an HTC Touch with Froyo installed that I use for app development. I haven't used it for a couple of months, and when I fired it up today I'm seeing the same error every time I launch the Market ...
5
votes
3answers
3k views

Windows laptop works with Wi-Fi AP, phone claims it is connected but can't access Internet

There's an Asus 240 MIMO Wifi access point. There's a laptop running Windows XP that uses that access point no problem for years so far. And there's an Android based HTC Desire S smartphone that has ...
5
votes
1answer
19k views

Configuring WiFi Proxy Settings

Where can I find the WiFi proxy settings? I have the Motorola Electrify M with Android 4.1.2. I would have expected the proxy settings to be under the advanced WiFi options, but they're not there.
5
votes
4answers
14k views

Why is my WIFI always on?

I have turned off WIFI in the settings, but it's still always running. Doesn't this graph indicate that WIFI is really on all the time? How can this be when it's definitely "off" in Settings? I'm ...
3
votes
1answer
3k views

Connect Android device as wifi adapter to a PC to create an ad-hoc network

Sometimes when being at a friends house there is no wifi but wired internet access. In these cases it would be extremely useful if I could plug my phone in and create a wifi network just like when ...
3
votes
1answer
639 views

2.1 as a secure access point?

I rooted my HTC Desire 2.1 and I want to turn in into secure access point. Is there any way I can do that? I do want to make is secure so user has to enter password to get Internet access.
3
votes
1answer
2k views

Route Application through Mobile Data when on Wifi

While on Wifi, Whatsapp won't work on my Galaxy Note 2 due to my work proxy. I have found no proxying application that will work, yet. (My work is using an HTTP Proxy). Is there an application that ...
3
votes
4answers
2k views

Turning on Wi-Fi on demand

Is there a way to reconnect to Wi-Fi whenever an application accesses the network? Background: I have a rooted e-book reader that runs Android 2.2 (Sony Reader PRS-T1). The system offers an option to ...
2
votes
2answers
42k views

Tethering an Android 2.2.1 (Froyo) using Wifi

I'm trying to get tethering to work. I've used the built-in functionality, setup my phone as an AP and connected to the wireless network. I get an IP (192.168.43.26) and I can ping the gateway (192....
2
votes
1answer
1k views

Only connect to certain Wi-Fi networks

I have a Bionic and recently upgraded from Gingerbread to ICS. I used to have my home Wi-Fi and my work Wi-Fi networks saved in my phone, and I had it set to not look for any other networks. I never ...
2
votes
2answers
6k views

How to set signal strength threshold for switching WiFi on and off?

When the WiFi signal strength is low, the phone switches to a 4G network. When the WiFi signal strength is high, the phone switches to that WiFi network. This is normal behavior for any Android ...
2
votes
2answers
2k views

Can android phones play DVD-format movies over WIFI?

I have ripped my library of DVDs to my home server. I play them over WiFi from other PCs. Can an Android phone with HDMI out do the same thing as a media center PC, playing these movies over the ...
2
votes
1answer
315 views

Why does HTC Incredible S turn Wi-Fi on by itself?

Sometime after latest official update to Android 4.0 phone began to switch Wi-Fi on by itself when being in sleep mode (or maybe at other times). Reproduction: turn off the Wi-Fi, leave it in a Wi-Fi ...
2
votes
1answer
5k views

Why do two smartphones connected to the same WiFi network show different speeds (one displays the link speed as 135 Mbps and other only 72 Mbps)?

I have two Android phones: Xiaomi Redmi Note 3 Acer Liquid Z630s On Redmi Note 3, the link speed is only 72 Mbps and the download speed hardly crosses 50 Mbps. Whereas on Acer Z630s, the link speed ...
2
votes
2answers
7k views

Phone forgetting networks after turning off wifi

Whenever adding a new wireless network, android seems to forget the network after disabling then re-enabling wifi. I am forced to manually connect to the network and enter the password each time. This ...
2
votes
6answers
2k views

How can I receive phone calls through Wi-Fi on an Android phone?

How can I receive phone calls from a landlines/cellphone when I have Wi-Fi connectivity, but no cell phone service?
1
vote
0answers
537 views

Is there a way for 3G to not disconnect when connecting to WiFi?

WiFi is unreliable, I wouldn't trust WiFi for SIP calls, I've disabled WiFi within CSipSimple. Now every time I connect to WiFi, my SIP registration seems to go away, and I'm not receiving any calls ...
1
vote
1answer
335 views

What is this VPN setting good for? [closed]

I have a Huawei U8160 (also known as Vodafone 858 Smart) which is running CyanogenMod7.2 There are settings for VPN which are empty. I was wondering if the VPN server setting should be set to a real ...

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