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How to Find Wi-Fi Network Passwords from Command Line on Mac

Jul 24, 2015 - 8 Comments
Terminal in OS X

Given the complexity of some wi-fi network passwords combined with the general infrequency of entering them and that they’re typically saved on use, it’s not terribly unusual to forget what a specific routers wireless password is. Fortunately, if you’re on a Mac, there are a few ways to go about finding those lost or forgotten … Read More

Find Detailed Wi-Fi Connection History from Command Line of Mac OS X

Jun 3, 2015 - 2 Comments
retrieve-detailed-wireless-network-connection-history-mac-os-x

There are some situations where knowing exactly what wireless networks a Mac has connected to and when that connection was last established can be helpful. We’ll demonstrate how to uncover a comprehensive listing of specifics about previously joined wi-fi networks, which will include the last connection date and time (to the second!), if the network … Read More

How to Sniff Packets & Capture Packet Trace in Mac OS X the Easy Way

Apr 23, 2015 - 11 Comments
Reading a captured packet trace PCAP WCAP file in Mac OS X With Cocoa packet Analyzer app

The Mac includes a variety of powerful wireless network tools that offer many features which are helpful for administration and IT purposes, including the ability to sniff packets. Here we will demonstrate how to perform a packet trace in OS X easily by using the built-in Wi-Fi Diagnostics app. Using Wi-Fi Diagnostics Sniffer function is … Read More

Disconnect from Wi-Fi Network in Mac OS X Without Turning Off Wireless

Apr 19, 2015 - 4 Comments
Disconnect from a Wi-Fi network in Mac OS X quickly

Mac users can quickly disconnect from a wi-fi network by using the wireless menu in OS X. This simple task is incredibly useful for managing and juggling multiple networks, whether for something as simple as using iPhone Wi-Fi Hotspot or even a more advanced task like packet sniffing. It’s important to note disconnecting is not … Read More

Fix for a Mac Disconnecting from Wi-Fi After Sleep Wake

Apr 24, 2014 - 26 Comments
Mac Wi-Fi Tool

A fair amount of Mac users have encountered an issue where their Mac will immediately disconnect from wi-fi networks after waking from sleep, forcing users to rejoin a wireless network constantly. This is obviously pretty frustrating, but it’s usually easily remedied with a few adjustments to the Network Preferences in OS X. If your Mac … Read More

How to Find Wi-Fi Link Connection Speed in Mac OS X

Apr 2, 2014 - 6 Comments
Find Wi-Fi Connection Speed in Network Utility for Mac OS X

If you need to find out just how fast your wi-fi link speed is, or rather, the speed of which your Mac is connected to a particular wireless router, you can find this data through the Network Utility app that is bundled in every version of Mac OS X. This is really the fastest way … Read More

How to Find Wi-Fi Security Encryption Type of a Router from Mac OS X

Mar 24, 2014 - 6 Comments
Find the wi-fi security encryption protocol type

Have you ever needed to know what type of security and encryption method a wireless network is using? While the Mac will figure this out itself when joining most networks, you may need to relay the information to others, or specify it yourself when joining other networks. You can get the encryption protocol in use … Read More

How to Fix an “Unable to Join the Network” Error in iOS

Mar 1, 2014 - 54 Comments
Unable to join network error in iOS

Considering that so much of the functionality of iOS is dependent on the internet, it’s pretty frustrating if you can’t join a wireless network because of a mystery “Unable to join the network [name]” error popping up on an iPad, iPhone, or iPod touch. You may encounter this alert trying to join a wifi network … Read More

How to Forget Wi-Fi Networks on iPhone / iPad to Stop from Re-Joining Unwanted Routers

Feb 13, 2014 - 14 Comments
Get more info about the wi-fi network

iOS is usually smart enough to join the last functioning wireless network used within range, but if you’re in an area with many wi-fi networks available sometimes you’ll find an iPhone or iPad is persistently joining and re-joining a network that you don’t want it to, even if you consistently toggle over to join a … Read More

How to Find the Best Wi-Fi Channel with Wireless Diagnostics in Mac OS X

Dec 11, 2013 - 30 Comments
Scan and find the best Wi-Fi channels to use

Just about every semi-technical person has setup a wireless router at home or in the office, and in that process has wondered which broadcast channel would be the best to use. Sure, some wi-fi routers make it simple and will recommend a channel on their own, but often it’s left up to the user to … Read More

Set MTU Size from the Command Line of Mac OS X

Jan 14, 2013 - 12 Comments
Set the MTU size in Mac OS X

MTU stands for Maximum Transmission Unit, and a larger MTU size generally increases efficiency of a network connection because each packet carries more data, but sometimes the default MTU sizes (often 1500) will cause issues with some networks and needs adjusting. Changing the MTU size has been a solution to some dropping wi-fi connections in … Read More

Get a List of Preferred Wi-Fi Networks from the Command Line

Jan 3, 2013 - Leave a Comment

Retrieving a list of preferred wireless networks can be helpful when troubleshooting wi-fi problems. The following trick will do just that, and it’s similar to a tip we covered recently which showed how to see a list of previously connected wi-fi networks using either System Preferences or a lengthy command line string, but as far … Read More

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