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Author Topic: How to Troubleshoot Wi-Fi Connection Issues on Mac  (Read 521 times)


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How to Troubleshoot Wi-Fi Connection Issues on Mac
« on: August 11, 2016, 12:23:52 PM »
Is your Wi-Fi down and unable to connect your Mac to the Internet? Here is solution described to get connected to your Wi-Fi if you have lost connection or have a faulty or weak Wi-Fi connection. Below 10 different solutions are given for Mac OS X Yosemite, Mac OS X El Capitan or macOS Sierra users to fix Wi-Fi connection related issues in the best way:

Possible reasons of losing Wi-Fi connection

Most of the people are habitual of leaving an always-on wireless internet connection. You may be lucky to if broadband problems are not plagued, or you may be a citizen of a remote area of the country where you get fast access to the internet. But what if when something awry happens with the WiFi connection on a Mac?  There may be the two possible reasons of the problems: either there is an issue with your own Wi-Fi network or there's a problem with your broadband provider's network or your router.

If there is any problem at the network provider end, complaint about the connection and follow your broadband provider's advice. If you know that the problem is at the provider’s end check the official website of the company to find the instructions for fixing the issue otherwise if problem is beyond your knowledge, ask your network provider to fix that.

If the problem is at your part means it is in your local network, you may fix it using a tool called Wireless Diagnostics that is tucked away in OS X. This tool will help you out in finding what is wrong that is creating troubles.

How to fix Wi-Fi connection problems on Mac using Wireless Diagnostics tool

Apple introduced a new tool called Wireless Diagnostics in Mac OS X 10.8.4 that gives helpful suggestions to get more from your wireless connection on your Mac.
Steps to use Wireless Diagnostics:

•   Press down the Alt key and click on the AirPort icon showing on the right-hand side of the top menu bar.
•   Select Open Wireless Diagnostics.
•   Click on Continue option.

There the first thing you'll notice is a dialog box detailing about Wireless Diagnostics can monitor your network for 'intermittent connectivity failures', diagnosing problems with your Wi-Fi network, placing a report on your Desktop, sending the report to Apple, etc. If you click on continue button there it gives permission for that report and data to send to Apple (but you can ignore it for now).
If you're running Mac OS X Yosemite or later, access the menu bar, select the Window menu and then choose Performance. Press Cmd-5 to do that alternatively. In Mavericks and Mountain Lion, select Utilities from the Window menu, then choose the Performance tab (you may need to click Monitor Performance in the main dialog first).

When you click Performance, a window will open where you will see one or more graphs. Number of graphs depends on the version of the OS X you're running. There will be three graphs in Yosemite and later: one showing transmission rate, another displaying signal quality, and third one displays signal and noise levels.

How to Avoid Interference

When you feel sudden increases in noise, the first thing you need to do is find out which other resources are interfering with the Wi-Fi signal. It may happen if a wireless phone handset is in use or microwave oven is switched on.

If you identify that which appliance is causing interference with the Wi-Fi signals, you keep the router away from the appliance, try it at different locations, and vary its height.
How to Reposition a Wi-Fi router

If your router is connected to only one Mac, move the router closer. Avoid placing router at a height lower than furniture pieces, cabinets or other items. Also avoid other electrical devices like electric fans, motors, and wireless phones because they all are the common source of wireless interference so try to place router away from them.

If wireless router includes extendable antennae, then place one horizontally and one vertically to get the best reception for your wireless router.

Use the 5GHz Network

If your router, Mac and iOS devices support 5GHz, force them to use the 5GHz network. Although 5GHz has a limited range in comparison to 2.4GHz, but there's this frequency creates less interference because other electrical appliances at home don't use that frequency. You need to separate the 2.4GHz and 5GHz networks first on your router and then name them.
Once you've separated the two networks, tell your Mac and iOS devices to join 5GHz in preference to 2.4GHz. To add the network in OS X, go to System Preferences and then select the Network Preferences pane, then click on Wi-Fi, then the Advanced button, and then drag and drop the 5GHz network to the top of the list.

If you are using an iOS device, tap on Settings, then on Wi-Fi. Then tap on the 'i' next to the 2.4GHz network, and slide 'Auto-Join' to off.
Once you have told your Mac and iOS devices to join the 5GHz network, it will leave spare room on the 2.4GHz frequency for those devices that need it.

Install a WiFi Extender
If have a fixed connection to your broadband or cable socket, it is recommended that you buy  a separate wireless access point (if it has a built-in router, set it to Bridge mode), switch off the wireless access point on your router, and use Powerline adapters for connecting the router and separate access point.  It will give you more liberty to place the wireless base station in order to increase its range and minimize noise and other sort of interferences.

There are many Wi-Fi extenders are available in the market such as AirPort Express to extend your wireless network, you can place a second Wi-Fi device closer to the router.
Several WiFi extenders are available, or you can purchase an Apple base Station. This can be used to extend your wireless network.

Update macOS or Mac OS X

Apple releases software fixes and enhancements routinely that may improve the performance of Mac OS X wireless connectivity. To make sure that you are running the latest version and installing the update, Click Apple > Software Update.

Update Router Firmware

Make sure that your router is running the latest firmware. Updating your router and modem to the latest firmware depends on which router you are using.

Restart all Network Devices

Often restarting your network devices may also solve your issue. Power down all your devices, including the Wi-Fi router, computer, or any other device connected to a Wi-Fi network. Just leave them off for some time and then turn it on again.

Require Admin Credentials to Turn WiFi Off

It is an option worth trying to force Mac OS X to stay connected to the router. Do this by insisting that Mac OS X to ask you for your password to disconnect from a Wi-Fi router. Follow the steps written below to perform this trick:

•   Open System Preferences and click Network.
•   Click on Advanced button.
•   Under Require Administrator Authorization To, put a check mark in the square box to Turn Wi-Fi on or off.
•   Then click OK.

Routers do a job of choosing channels automatically, depending on what else is operating nearby. If you open the Scan tool from the Windows menu in Wireless Diagnostics and find out that your router and the nearby router is operating on the same channel, you may want to change it manually.
Don't just move it to the next available channel because channel frequencies may overlap. So make sure that you move at least five or seven channels away from the frequency on which your router is currently operating because narrowband use five channels concurrently and wideband routers use seven.
« Last Edit: August 11, 2016, 12:27:00 PM by Admin »

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How to Troubleshoot Wi-Fi Connection Issues on Mac
« on: August 11, 2016, 12:23:52 PM »


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