Best Wifi Channel Scanner Apps For Macos High Sierra
Apr 23, 2017 You can ensure that you're getting the best Wi-Fi connection possible with the Wireless Diagnostics application on macOS. Scan your Wi-Fi area. You're going to need to scan your area for all of the Wi-Fi networks that your Mac can reach by starting the Wireless Diagnostics Application.
Reason 1: Co-Channel Interference
In networks where devices take turns to talk, it takes time for each of them to wait for their turn. Therefore, the more devices the longer the wait time. This type of Wi-Fi interference isn’t actually electromagnetic interference. Instead, it’s a result of Wi-Fi routers doing their best to give one another room to transmit data.
Think back to when you were in elementary school and your teacher asked the whole class a question. The chances are that multiple kids started shouting at once and nobody could hear anything properly. That’s basically what co-channel interference is, which is why Wi-Fi routers take turns and politely wait for one another to finish.
Reason 2: Adjacent-Channel Interference
Adjacent-channel interference happens when clients on overlapping channels talk at the same time. Wi-Fi channel selection is crucial in cases like this. Such channel-related interferences can be cut down or excluded by choosing the proper Wi-Fi channel for your network.
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NetSpot can help you reveal which Wi-Fi channels are cluttered the most so you can avoid them and use other channels instead, preferably channels 1, 6, or 11 because these three channels are non-overlapping. Fortunately, modern Wi-Fi routers are able to cope with adjacent-channel interference much better than older routers, many of which default to the same Wi-Fi channel.
Reason 3: Non-Wi-Fi interference
In addition to Wi-Fi routers, there are many other electronic devices that can interfere with the 2.4 GHz band. Some interfere with it because they use it to wirelessly transmit data, such as security cameras, Bluetooth devices, baby monitors, and smartphones, while others interfere with it because they emit a large amount of electromagnetic radiation, such as microwaves and other appliances.
To avoid non-Wi-Fi interference, it’s important to place your Wi-Fi router far away from all sources of electromagnetic radiation, preferably also away from solid objects, including walls, large pieces of furniture, and so on.
A WiFi channel scanner like NetSpot helps you see through the network and choose the proper channel or reduce WiFi interference. Using NetSpot channel scanner will help you improve your 2.4 GHz WiFi network performance.
Check compatibility
You can upgrade to macOS High Sierra from OS X Mountain Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 14.3GB of available storage space.
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS High Sierra, the installer will let you know.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS High Sierra
Best Wifi Channel Scanner Apps For Macos High Sierra 10
Wifi Channel Scanner Mac High Sierra
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.
If you still need macOS High Sierra, use this App Store link: Get macOS High Sierra.
Begin installation
After downloading, the installer opens automatically.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Learn more
- If you have hardware or software that isn't compatible with High Sierra, you might be able to install an earlier macOS, such as Sierra or El Capitan.
- macOS High Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.