macOS Sierra is Apple's operating system for Macs that offers access to plenty of proficient features. But, just like other operating system versions, it also comes with a few issues. For some users, this update does not provide a pleasurable experience.
In this article, we have compiled a list of some common macOS Sierra issues along with their possible solution.
Contents
Repeated Freezing or Crashing
Sometimes you will find that your Mac crashes or becomes unresponsive when installing macOS Sierra. To get rid of this problem, uninstall any antivirus software before starting installation. Switch from Wi-Fi connectivity to a wired connection.
If it doesn't work, boot your system into Safe mode. Start booting by pressing the power button while holding down the Shift key.
Corrupted macOS DNS Cache
Mac DNS cache can be corrupted for various reasons, such as virus infections or network attacks. It can cause a problem in loading sites with a 404 error. Run a Malware scan to find any suspicious files. On macOS flush DNS cache by pressing down the Command + Space keys.
Alternatively, tap the Spotlight search button. Type in Terminal and click ‘Terminal' under ‘Top Hit' twice. Enter ‘sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder' command. Submit your Mac's password and press Enter.
Inappropriate Installation
When you successfully download macOS High Sierra, the installer may not open automatically. Find the package Install macOS 10.13 in the applications folder. Or check available disk space before starting the installation.
Ensure at least 14.3GB of free space. Booting to Safe mode can also troubleshoot this issue. If a corrupted installer is a culprit, delete the damaged package and download it again.
System Boot Issues
You have downloaded and installed macOS Sierra but can't start Mac after an update. A white screen will appear with the Apple logo. To fix the issue, reset your system management controller.
Reset the NVRAM by restarting your system and holding down the Command, Option, P, and R keys. Another method you can try to fix this issue is booting your Mac in Safe mode. But, first, ensure that your system has at least 9 GB of free space.
Slow and Sluggish Mac
If your Mac starts crawling or running slowly after upgrading to macOS Sierra, then take immediate action. Repair HDD permissions using Disk Utility. Restart your system to identify if it works.
Disable resource-heavy login items by navigating to the Activity Monitor. Upgrade RAM or reduce its consumption by removing the widgets that take up much space of system memory. Also, remove the cache.
Unreliable WiFi Connectivity
Does your WiFi work slowly after the macOS Sierra upgrade? Delete WiFi preferences and start over. It could be available in the System Configuration folder. In Finder, tap Command + Shift + G (Go to Folder command).
Delete com.apple.network.identification.plist, preferences.plist, NetworkInterfaces.plist, com.apple.airport.preferences.plist, and com.apple.wifi.message-tracer.plist.
Malfunctioning Safari Browser
To give users a faster browsing experience, Apple removes outdated plug-ins such as QuickTime, Flash, Silverlight, and Java. Safari in Sierra will ask you when you'll stumble upon the site using the outcasts.
You can answer it to perform it once, all the time, and never come back to Flash using the website. It will be embarrassing at this point. However, the Safari plug-in is not a bug but it is a feature.
Incompatible APFS Issue
It has been found that changing to graphics card drivers in macOS High Sierra causes gaming issues. Developers of some games and the Unity engine face issues related to compatibility with APFS, gaming controllers, game engine, and graphic controls.
These issues are mainly observed in a few games such as Civilization V, Counter-Strike: Global Offensive, Cities: Skylines, and similar games. For now, there is no solution to these gaming issues.
Unrecognizable USB Error
After upgrading to Sierra, some Macs are encountering difficulty with USB devices. The systems refuse to read and see the external drives, USB drives, and other drives. To quickly fix this problem, reset SMC.
For this, turn your Mac off and on it again. Press and keep on holding Shift + Control + Option and the Power button for some seconds (approximately 10 seconds). If it doesn’t solve the issue, reinstall High Sierra.
Improper Bluetooth Connectivity
One of the common macOS Sierra issues that mostly happens due to Apple’s compliance with Bluetooth SIG outpacing devices. Users find it difficult to connect Bluetooth devices to their macOS updated laptops.
Power-cycle all the involved devices to fix this problem. You can also try reverting your Mac to El Capitan. Do it until the Bluetooth device provider issues a firmware update to a specific device.
The Conclusion
As you can see, all of the issues have easier potential solutions. So, there is no problem in upgrading your Mac to Sierra. But, before upgrading to this version, check your system compatibility with macOS High Sierra and perform a bootable backup.
