Questions tagged [wifi]

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

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votes
1answer
12k views

Macbook Pro Wi-Fi problems after Yosemite 10.10.5 update

I've had my Macbook Pro for about a year now. It is a late 2013 Retina model running Yosemite. Until a few days ago, its Wi-Fi worked fine. However, after the 10.10.5 update, its Wi-Fi has become very ...
6
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3answers
2k views

A utility for tuning your WiFi network?

Is there an app available to help tune Wi-Fi network settings? My local air space is starting to get congested and I want to make sure I'm using the optimal channel and settings on my router to avoid ...
4
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5answers
30k views

Sharing a VPN connection using Internet Sharing (via Airport)

Internet Sharing from my MacBook Pro (10.6.6) to other WiFi devices works fine. But the moment I turn on the VPN connection (PPTP) on the Mac (which I would also like to share), the other devices ...
4
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4answers
4k views

Wi-Fi Diagnostics app not found

After reading this CNet article I was pretty excited to have a tool that monitors my wireless network since I'm in the process of setting it up well. Wi-fi Diagnostics is said to be in the ...
12
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3answers
7k views

How to create an infrastructure Wi-Fi network from Yosemite with no Internet connection? [duplicate]

How to create a Wi-Fi hotspot (infrastructure network, not ad-hoc) on a Mac without any Internet connection? In Windows, we can easily create an infrastructure wifi LAN hotspot with: netsh wlan set ...
8
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2answers
5k views

How do I automatically connect to a VPN when using Wi-Fi in OS X? [duplicate]

The FBI issued a warning regarding hotel Wi-Fi access points, and any other public access point. I'd like to make sure my apple device always uses a VPN when using Wi-Fi. That way even if an attacker ...
7
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3answers
54k views

Macbook Pro as a wireless bridge? (Private hotspot from external wifi connection)

While travelling, it would be convenient to set up a wifi hotspot from my Macbook, which would share the wifi internet with my phone and tablet (wifi <-> Macbook <-> wifi). This would make it ...
6
votes
4answers
39k views

Can I connect to wifi but still use cellular?

I would like to be able to connect to my cars dashcam via wifi while in the car but still be able to use my iPhone's cellular connection. The way the dashcam works, it appears as a wifi access ...
5
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2answers
12k views

Macbook Pro frequently experiences drops in WiFi connection with Linksys WAG120N

I have a non-retina mid-2012 Macbook Pro running Snow Leopard and this issue has been plaguing me for a while. During regular use of the laptop, while connected to my home WiFi network (to which no ...
4
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3answers
7k views

Why is my MacBook Pro constantly losing the wifi connection with my WRT150N router?

My Macbook is constantly losing its wifi connection. Sometimes it has trouble connecting, other times it connects, but I obtain a server not found error. It seems to work reasonably well at work, but ...
4
votes
1answer
5k views

What are the different internet connection types used by ifconfig and ipconfig?

Typing ifconfig on the command line gives me listings for several devices. I've seen at least the following ones: lo0 gif0 stf0 en0 en1 en2 en3 p2p0 awdl0 bridge0 What specifically do each of them ...
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2answers
16k views

How to disconnect from wifi on Mac OS X

How does one disconnect from a wifi hotspot on Mac OS X? The only way I found how is to Turn Wi-Fi off then back on and finally select a different access point... Surely there must be a better way.
11
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7answers
9k views

What tools are there for measuring Macbook wireless strength?

I often have trouble connecting to wifi with my MacBook Pro. To help identify the problem, I was wondering if there were any tools for measuring wireless signal strength.
10
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3answers
9k views

OS X status bar wifi icon - meaning of bars?

On my MacBook Air, MacBook Pro and Mac mini, the status bar includes the standard "radiating sector" wifi icon which you can click on to select a wifi network, or Option-click on to see additional ...
9
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2answers
15k views

How can I get the list of all active network interfaces programmatically?

My objective is to determine the IP address for Ethernet on a device. But assuming that there are connections like WiFi and USB Ethernet, is there a particular way just to get the Ethernet IP ? On a ...
7
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4answers
74k views

Can't turn on wifi on Mac OSX Mountain lion MBP 2012

The WiFi interface won't turn on when i press "Activate wifi" from the preferences neither from the status bar. I tried restarting the mac,and reset the pram. The Ethernet works fine and this is ...
7
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2answers
10k views

How to access wireless channel 13 and above from a US Mac Book Pro?

When traveling internationally and connecting to an 802.11g wireless network I'm unable to connect because non-US access points default to using channel 13 and up. From what I hear if the Mac Book Pro ...
6
votes
4answers
2k views

Prevent from switching Wi-Fi networks

I have two wifi access points at home: "downstairs" and "upstairs". They're both WPA2. If I'm upstairs and connected to "upstairs" and my laptop goes to sleep, when I reactivate it, it connects to "...
6
votes
1answer
70k views

What does an icon that looks like a pair of connected chain links next to a wireless network name mean?

When I click on the WiFi symbol in the menu bar on my Mac I get a list of wireless networks, most of them with little lock icons next to them. But some of them show what looks like a pair of chain ...
5
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2answers
7k views

How can I automatically disable WiFi when I connect to an Ethernet network?

I would like my WiFi to automatically disconnect when I plug an Ethernet cable into my Mac. How would I go about this?
5
votes
2answers
8k views

Lost Wi-Fi passwords after reset network settings on iPhone

After a network configuration reset on my iPhone all Wi-Fi passwords were lost. They were stored in iCloud Keychain, synced with my Mac, where they disappeared too. This is very frustrating since it ...
4
votes
3answers
26k views

Delete Wi-Fi network from mac

How do I delete a network from my Mac? I removed it from network preferences in the advanced pane but it still appears connected in my list. I also tried looking for it in Keychain Access but it's ...
4
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1answer
2k views

Is there a way to auto switch wireless networks depending on signal strength?

I have a Linksys dual band router. Near the back of our house (which is where our computers are mostly located) only the G network really comes through so when I'm working in the front of our house, I ...
3
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3answers
2k views

Is there a way to share a wi-fi connection over wi-fi?

The problem is that here is a router (at a cottage), which only allows 2 connections. but we need wi-fi for 8 devices. so the plan is to create another wi-fi spot to share our connection. is there a ...
3
votes
1answer
1k views

How to create a password protected ad-hoc network on Yosemite when not connected to the internet

This is a more precise reframing of questions No secure ad-hoc network with Yosemite? (my use case) and How to create a password protected ad-hoc network on Yosemite (not applicable here). Background ...
2
votes
1answer
4k views

Making a program use a specific network interface

I would like my IRC client to only use a WiFi connection and all other programs to use WiFi or wired connections. This is because every time I plug in my Ethernet cable my IRC client automatically ...
2
votes
2answers
8k views

Why doesn't my MacBook Pro Retina connect to 802.11n?

I've bought a 15" MacBook Pro Retina Late 2013 and so far everything works perfectly. Luckily I'm not experiencing the "Lose Wifi after sleep" issue. That said, I only rarely connect to high-...
2
votes
0answers
863 views

Why does my Network preference pane freeze every time I open it?

For some time (about a month give or take) the Network Preferences pane in System Preferences has been freezing every time I open it. Wi-Fi works fine and I can connect using the menubar icon, but I ...
2
votes
1answer
9k views

Enhance Wifi range on a TimeCapsule

I previously had a DLink modem-router (DSL-2740B). I replaced it with a small ADSL D-Link modem and a TimeCapsule. While I'm quite happy with it, the main and only criticism I could make is the loss I ...
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2answers
3k views

How can I write an AppleScript which when run will connect to a specific WIFI network if available?

The title pretty much sums it up. I want to avoid having to use the trackpad to connect to certain networks. This comes up often when a new network becomes available but I'm already connected to ...
1
vote
1answer
72 views

Do the wi-fi communications from Mac to Mac travel through the access point?

Let’s put two Macs MAC1 and MAC2 on the same table. They are connected to the same AirPort (wi-fi) network. They are connected to the access point AP, which is far away, at 10 meters. The Macs are ...
1
vote
1answer
19k views

How to set up Time Capsule in wireless bridge mode?

I can't find any clear, step-by-step instructions on how to set up a Time Capsule in wireless bridge mode. Eg, how to disable its routing functions and set it up as a switch/repeater connected ...
13
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3answers
144k views

My MacBook pro Wi-Fi is slow, other devices are OK

The problem is that the WiFi on my MacBook is so slow it is almost unusable, it can be compared to an EDGE connectivity. My iPad and Nexus 4 both work good and have no problems with WiFi and signal is ...
12
votes
3answers
166k views

Latest iOS 9 doesn't show WiFi symbol, even when connected to WiFi

How do I display the WiFi symbol when connected to WiFi? iOS 8 used to show the WiFi symbol in place of LTE when connected to WiFi. Now, after the iOS 9 update, it always display LTE, even though I'm ...
12
votes
6answers
37k views

What OS X signal strength test apps exist to measure Wi-Fi networking?

Is there a way I can get more details on the strength of my Wi-Fi signal? I'm looking for either an app I can download or a system command that I can run in terminal that will expose the noise of ...
11
votes
6answers
50k views

Have to reconnect to WiFi every time computer goes to sleep

I recently purchased a new MacBook Air (2011) with Lion preinstalled. There is this persistent and incredibly annoying problem that is occurring with the WiFi. Every time I close the lid or let the ...
9
votes
2answers
29k views

Can I use 2 iPhones as walkie talkie? (without internet!)

I want to use 2 (or more) iPhones as walkie talkie (i.e. they talk each other without needing internet/voice call). Of course this should work with wifi, because it doesn't make much sense a to have ...
7
votes
1answer
11k views

Why does OS X repeatedly prompt for certificate trust when joining WPA2 Enterprise WiFi

WHY does OS X always prompt for certificate trust when connecting to WPA2 Enterprise (EAP-PEAP in my case) networks, even if the certificate is already marked as 'trusted'? Even weirder.. if I delete ...
6
votes
4answers
5k views

MacOS Mojave 10.14.1 Captive Wi-Fi Problem

This is the same/similar to this one, but I'm running the final version of 10.14.1. I can make the problem go away if I remove the following files from /Library/Preferences/SystemConfiguration/: com....
6
votes
1answer
4k views

What is /System/Library/CoreServices/WiFiAgent.app?

Recently, I've been a bit worried about malware, so I've been examining my system and searching for out-of-place applications/programs, and this one stood out. For one, when looking at the file in ...
6
votes
5answers
5k views

Why doesn't Airport reconnect after sleep or shutdown?

I have a MacBook Pro (2.4 GHz Core 2 Duo, running OS X 10.6.8) that does not reconnect to its stored WiFi network after it restarts or goes to sleep. To reconnect, I need to go into System Preferences ...
5
votes
2answers
12k views

Not able to access localhost via local IP

I want to connect to my local Web Server (NodeJS server) which runs on my MacBook with my iPhone. On my Mac I can access the server via http://localhost:3000/. Now all it should take is to replace ...
5
votes
3answers
21k views

MacBook as WiFi extender

With AirDrop it seems that my MacBook Pro can have multiple Wifi Connections, so can I connect my iPhone to my Macbook at the same time as the macbook is connected to a Time Capsule's Wifi network. I ...
5
votes
3answers
2k views

How to easily and completely disable/enable WLAN (so it cannot be turned on again while travelling)?

Without going into specifics of why I might like to do this, or whether this is a good idea or not, I would like to know how I can disable use of wireless networking on my MacBook Air, either via ...
4
votes
2answers
3k views

How captive.apple.com is used by non-Apple devices?

Every time, I try to use my hotel's WiFi network, at some point of loging-in to it, I see that my browser (or WiFi connection pop-up) is redirecting through serie of websites, among which I can ...
3
votes
5answers
22k views

Apple TV Black screen (OS X Yosemite )

I have MacBook Pro (Retina, 13-inch, Mid 2014) and also a third generation Apple TV. Lately, especially after 10.10.3 update for OS X Yosemite, I am having mirroring issues. I have checked all the ...
3
votes
0answers
1k views

Mountain Lion Upgrade Internet Issues [closed]

My MacBook Air late 2010 worked perfectly before the Mountain Lion upgrade. After I updated to Mountain Lion, the Internet stopped working on my WiFi network. It detects the network and connects to it ...
3
votes
3answers
58k views

Can you connect iPhone/iPad to Apple TV without WiFi network in place

I would like to make a presentation from an iPhone or iPad using an AppleTV and projector. Is it possible to do so without either a WiFi or LAN network in place (like in a bad hotel)? Is the AppleTV ...
2
votes
3answers
1k views

Wifi doesn't work unless I cycle it off then on again coming off of sleep

I have a Macbook Pro Retina, 15in, and I have the above issue. In a related question (Wifi doesn't work unless I turn it off then on again) a user commented: For as long as I can remember, I've ...
2
votes
1answer
806 views

Incoming cellular calls ring on all my iOS devices

When I receive an incoming cellular call on my iPhone 5 (iOS 8.3), it is propagated to all my other devices (including a wifi only iPad) connected to the same wifi network. I guess that's an ...