Wireless local area networking, also known as "Wireless Internet"; stands for "WIreless FIdelity"

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41
votes
5answers
1.4m views

Is there any way to view saved wifi passwords on the iPhone?

I've previously connected to a wifi network on my iPhone but I've no way of finding out the password. So is there any way to view saved wifi passwords on the iPhone?
18
votes
10answers
14k views

Start/stop internet sharing from a script?

Is there a way to start/stop internet sharing from the command line or maybe an apple script? The thing is that I move around my laptop between home and work. At one place I get wireless internet (...
76
votes
4answers
77k views

How does the Mac choose which connection to use when both Wifi and Ethernet are connected?

When I'm connected to two networks with separate routers using Wifi and Ethernet, how does my Mac know what connection to use when I visit a website?
2
votes
12answers
28k views

No Wi-Fi on iPhone?

In my iPhone settings where I'm supposed to turn Wi-Fi on or off, it is just grey & says 'No Wi-Fi'. I have reset network settings, restored phone, re-synced everything, but still have this ...
33
votes
6answers
64k views

How to automatically login to captive portals on OS X?

How can I automatically login to captive portals on OS X? A captive portal is used by (often not password-protected) wireless networks that present a web page as soon as you connect to them, ...
30
votes
4answers
21k views

Bluetooth and WiFi interfering with one another since Yosemite

Note: The only thing that changed in my setup is installing Yosemite. Since installing Yosemite, I'm having a somewhat peculiar problem: WiFi works fine, and BT works fine. But WiFi + BT working ...
31
votes
8answers
60k views

Wifi Keeps Dropping Macbook Pro 13in Retina Early 2015

I've tried everything I can think of. Resetting the router, changing the channel number and band. The internet connection is fine, and then just hangs for a minute or 2, then returns to normal. ...
11
votes
2answers
44k views

How to use WiFi and Ethernet at the same time

Brief Description: I need my Ethernet card (en0) to see all traffic under 192.168.2.xxx. However I also need to use WiFi card (en1) for all other traffic. OS: OS X Lion I am using a separate ...
12
votes
3answers
544 views

What are the risks of connecting a MacBook to an insecure wireless network?

What privacy and security risks am I exposing myself to when I connect my MacBook to an open insecure wireless network? Are there any risks that are worse or better when compared to a Windows PC that'...
10
votes
5answers
4k views

How to change network connection order?

I have multiple network access in the same area. How can I reorder the priority to which the connections are made ?
4
votes
2answers
9k views

MacBook Air wifi NIC: supported channels

I've had a problem with my Wi-Fi connection to a TP-Link router from MacBook Air. It has been solved by manually changing Wi-Fi channel on the router from "Automatic" to an average value. What ...
7
votes
10answers
13k views

How can I stream files to my iPad? [closed]

I have loads of videos and music on my computer, which I want to watch on my iPad. However, I want to stream it to it, so I can grab what I feel like watching rather than having to preload ...
3
votes
1answer
1k views

Create AirPort network from the command line?

Is it possible to put my AirPort in access point mode, so it creates an infrastructure (ie, non-ad-hoc) network from the command line on OS X? Similar to using System Preferences -> Sharing -> ...
4
votes
1answer
1k views

Share internet connection over Wi-Fi

I am using MacBook Pro with Snow Leopard, and my system is connected to internet via wired broadband connection. I want to share internet connection from my MacBook Pro via Wi-Fi, so I can connect ...
3
votes
2answers
11k views

Why can't I choose to set up Internet Sharing to computers using AirPort?

I'm using OSX 10.9. I'm trying to set up Internet Sharing to connect my Android to my Mac directly over Wi-Fi. Every tutorial I've come across (including the one published by Apple) mentions checking ...
11
votes
6answers
18k views

How to enable faster WiFi Roaming with Mac OS X & Airport base stations

How can I change the way Macbooks roam on the WiFi network? I would like to speedup the roaming of Macs (and maybe other devices). Is there a setting on the Airport base stations or in Mac OS to ...
15
votes
15answers
51k views

Wi-Fi connection randomly disconnects on 2012 MacBook Air

My 2012 MacBook Air has problems with Wi-Fi – random disconnections, every few minutes. The problems occurred with Lion, and persist after an upgrade to Mountain Lion. It seems the Wi-Fi drops ...
10
votes
3answers
108k views

Will an Airport Express extend the Wi-Fi of another-non Apple Access Point?

My colleague has a cheap Cisco Access Point on another floor. The wireless is very spotty. He is using a Mac Pro. Will an Airport Express work to extend this network?
4
votes
4answers
57k views

Full Wi-fi/ethernet signal but no internet

I'm really hoping someone here can help me, as I'm getting pretty frustrated with my macbook now. I have a late 2011 model 15" macbook pro running OSX 10.9.5 that refuses to connect to Internet on my ...
8
votes
7answers
59k views

How can I stop my MacBook Pro from automatically sleeping when I lock the screen?

Whenever I lock my screen (via either the lock icon -> Lock screen or by using the Control+shift+eject key combination), my screen immediately turns off (not showing the screen saver), and the system ...
8
votes
2answers
5k views

MacBook Pro Encountering High Latency

I'm encountering latency trouble with my 15" 2011 Macbook Pro (running 10.6.7) when on an 802.11n (5GHz) wireless network hosted by a Time Capsule (version 7.5.2). When I ping the Time Capsule, the ...
19
votes
13answers
86k views

How can I set the priority of Wi-Fi networks on my iOS device?

I have two Wi-Fi networks in my house, one at one end of the house and one at the other. While signals crossing from one side of the house are usually audible on the other side, they are generally ...
7
votes
6answers
47k views

How to disable automatic wifi connection?

When OSX already knows an wifi network it auto connects to it, but when it doesn't know the wifi network it will auto connect depending of the setting of the "ask to join" toggle setting in system ...
6
votes
1answer
56k views

How can I use a TP-LINK WiFi USB interface in OS X Lion?

I happen to have a TP-LINK TL-WN821N (it's a WiFi USB stick) around. Is there any chance to get that working on a Mac mini running OS X Lion? There are no official drivers but it seems there are some ...
4
votes
1answer
628 views

How do I set a specific system setting using a script or a profile? System Preferences/Networks/WiFi/Require authorisation to turn wifi on/off

I'm hoping someone can help. I work for a college, I manage about 80 Macs and we've had a problem recently where students are turning WiFi on or off on the Macs that they're logging on to. This is bad ...
3
votes
6answers
10k views

My MacBook Pro loses its connection to my WiFi router

I've set up a brand-new internet connection with a Wireless Router. The thing is that : It works all the time for my iMac It stops working at times on my MacBook Pro (either when connected via wifi,...
2
votes
4answers
16k views

I have to turn off and on my WiFi every hour or so. What's wrong?

In my home network, my Apple TV, iPad, and Macbook Air all have the same problem. The WiFi network works fine, but after about an hour or less, the Wifi stops working. Things just hang when I try to ...
10
votes
4answers
133k views

How can I tell which band (2.4GHz or 5GHz) my iPhone's WiFi connection is on?

I have two access points for the same network in my house, with some overlap. One runs on 2.4GHz only, and one transmits both 2.4GHz and 5GHz. I have an iPhone 5 (running iOS 6.0.1), which supports ...
9
votes
2answers
4k views

Internet stops working frequently on OS X Lion

After upgrading to Lion, I started experiencing this issue: Internet stops working frequently. - I open Safari and browse for some time - Suddenly I can't open any sites; Internet will stop working....
5
votes
1answer
9k views

View passwords of all Wi-Fi networks my Mac has connected to in the past

I have connected my Mac to lots of public Wi-Fi networks. I want to know their passwords. What should be the terminal command to list all the Wi-Fi networks whom I connected with in the past with ...
4
votes
3answers
8k views

Can I force my iOS device to connect to 1 Wifi network over another

We have 2 wifi networks quite close to each other in our workplace, but I need to connect my iphone or ipad to 1 over the other out of preference. It's fine for myself as I can simply change wifi ...
4
votes
2answers
89k views

Another device is using your IP address mac, what do I change my IP address too?

Our internet router often stops working at home, but for the the second time only I have got a pop-up error saying: "another device is using your ip address". We have an iPhone and a Macbook but ...
1
vote
1answer
789 views

Macbook Air failing to reconnect to network after sleep

I have a Mid-2011 13" Macbook Air running OS X 10.9.2 (the latest version). When I wake my Mac from sleep, sometimes, the Wifi will fail to find my network. The network icon will display the ...
11
votes
3answers
17k views

How to share internet with WPA/WPA2 security?

I'm using a macmini with Mac OS X Snow Leopard to share a cable internet connection. Sharing works fine except that security is limited to 40/128 bit WEP that is insecure (can be hacked in minutes). ...
6
votes
2answers
47k views

Can I use my iPhone as a hotspot on Wifi (instead of 3G/4G)?

I would like to use my jailbroken iPhone as a hotspot for my MacBook. It works well when my 3G internet is enabled. But when I disable it, the hotspot menu becomes unavailable... even if my iPhone is ...
6
votes
1answer
96k views

I cannot connect to internet but my MacBook Pro detects the network and my HP computer works fine on the same network

My MacBook Pro, for some reason, detects the wireless connection and I can open my Skype account without any problem BUT I cannot go to a web page. This happens on both Safari and Firefox. My HP ...
5
votes
1answer
27k views

Can you share a Wi-Fi connection using Personal Hotspot?

I have an iPhone 4 with iOS 6.1.3. I turn on cellular data + 3G and Wi-Fi constantly. I was at a site office today and my iPhone automatically connected to the office's Wi-Fi. The tech guy was not ...
3
votes
2answers
13k views

Can you make iTunes forget a device?

After migrating from one computer to another, my iPhone now automatically appears under the devices list in iTunes on both my old and new Macs. I don't want to accidentally sync my iPhone with my old ...
1
vote
2answers
8k views

AirPort Time Capsule wifi is suddenly very slow: Boom network load

Background I have a 5th generation AirPort Time Capsule, bought refurbished from Apple about 6 months ago. It is on software version 7.7.3 and has worked without issue until recently. Problem Two ...
1
vote
3answers
11k views

Recover forgotten WiFi password

I've previously connected to a WiFi network on my iPhone but I have no way of finding out the password. Is there any way to recover the password after resetting my device to view saved WiFi passwords ...
1
vote
2answers
9k views

Wi-Fi hardware not installed

I've a late 2008 MBP. It's worked fine up until Monday when the wifi stopped working. It now says "Wi-Fi: No Hardware installed". I've tried looking for it in the system prefs and it's gone. I've ...
0
votes
2answers
6k views

Sharing wifi from mac to iphone [duplicate]

I Googled how to do share my wifi connection from my Mac (new Macbook Pro) to my iPhone (5S) and I tried their way. System Preferences > Sharing > Internet Sharing but then i don't have the same ...
0
votes
2answers
7k views

Restrict certain apps from using Wi-Fi (internet) on iOS 8

I have iPhone 5c running latest iOS 8 update. I know how to restrict certain apps from accessing internet when using cellular data. I want to know if its possible to do same when Wi-Fi is turned on. ...
50
votes
8answers
44k views

Wi-Fi disconnects when I lock the mac

Everytime I lock my mac and log back in two minutes, It has disconnected the wi-fi network. Is there a setting to disable this? Model: Mac Book Pro - 15-inch, Mid 2010 I lock it by clicking 'Login ...
10
votes
6answers
55k views

Wifi doesn't work unless I turn it off then on again

I have a MacBook Pro 15" with retina display that I use for work/personal stuff and I always shut down with Wifi having been on. When I startup my Mac the Wifi icon looks like it's searching and never ...
11
votes
6answers
22k views

Change Mac OS X Wireless Card Country Code

I have problem connecting to a wireless router using Mac OS X which is on channel 13. This is because there is some other router nearby which is broadcasting the US country code. The only way around ...
4
votes
2answers
1k views

What are the numerous incoming connections I see on public wifi for?

In general I have incoming connections disabled by my security software (Little Snitch). But even when I do this, on public wifi, I see numerous incoming connections for netbios and mDNSResponder ...
22
votes
5answers
137k views

Is there an application like Connectify for Mac OS X Lion?

There is a well known app for Windows named: Connectify, used to share a wifi connection between a computer that only has wifi with other devices which requests that connection from the computer. ...
22
votes
4answers
664 views

How does iOS and OS X detect when a Wi-Fi network is a personal hotspot?

When there is a Personal Hotspot network available, it displays a chain link icon instead of the usual lock icon in the list of available networks on iOS and OS X. My question is, how does OS X ...
17
votes
6answers
72k views

How do I troubleshoot my Wi-Fi connection when an exclamation mark appears?

Sometimes, when I am in a public Wi-Fi an exclamation mark appears in the greyed out Wi-Fi icon. I can connect to the Wi-Fi (I get assigned an IP address), but I cannot establish an internet ...