A fairly large number of users are suffering from a problem that also occurs in the latest version of the MacOS operating system. If you leave your Mac, it is usually either in the event of MacBooku just close it or in the case of a desktop computer you select the sleep option, or like me you simply leave and the computer will sleep automatically in a few minutes. Everything works great, but the problem can occur when you return to the computer and wake it up from sleep mode. In that case, a fairly large number of users find that the computer either does not connect to the Wi-Fi network at all or, as in my case, it is connected, but the Internet is so incredibly slow that you are forced to turn off and on the Wi-Fi connection in the menuBar or in the settings.
The solution to this problem, which can ruin your day, is quite simple and should work for the vast majority of users who have this problem. Just open System Preferences and the Network tab. Then select the Adv itemanced in the lower right corner and under Preferred Networks, select all the Wi-Fi networks you see in the menu using Command+A and then press the minus button. This will delete all preferred Wi-Fi networks. The Mac will then disconnect from Wi-Fi and you will have to reconnect to your network. Confirm everything with the OK button and you are done. The problem should be resolved and everything should now work perfectly normally.
The only thing that is really important is that you know the password of your Wi-Fi network before you clear all networks from the settings. This is because automatically connecting to Wi-Fi is deleted after removing Wi-Fi networks from the list of preferred networks, and you must enter your password when you reconnect.
Hey man, post of the year, this really turns me on. If it works, I'll be very grateful?
I use No sleep…it's the best.
I'm probably offtopic, but I'll ask anyway:
After waking up, the mouse pointer often does not respond. Although it moves, it cannot be used to trigger any action (work with the menu, windows - they cannot be clicked). After restart everything works as it should. Do you have any experience how to solve this situation?
Thank you.
This happened to a colleague, and dycky solved it immediately after starting by invoking the context menu, i.e. by clicking the right mouse button.
He just made the offer and it's been a thing of the past ever since. nestHello? Thanks for the advice.
This is a possible functional solution, but if a person moves to multiple Wi-Fis, it will be saved there again. Will I keep erasing it and re-entering the password for every Wi-Fi?
Remove Network Configuration & Preference Files
Manually trashing the network plist files should be your first line of troubleshooting. This is one of those tricks that consistently resolves even the most stubborn wireless problems on Macs of almost any OS X version. This is particularly effective for Macs who updated to Yosemite that may have a corrupt or dysfunctional preference file mucking things up:
Turn Off Wi-Fi from the Wireless menu item
From OS X Finder, hit Command+Shift+G and enter the following path:
/ Library / Preferences / SystemConfiguration /
Within this folder locate and select the following files:
com.apple.airport.preferences.plist
com.apple.network.identification.plist
com.apple.wifi.message-tracer.plist
NetworkInterfaces. plist
preferences. plist
Move all of these files into a folder on your Desktop called 'wifi backups' or something similar – we're backing these up just in case you break something but if you regularly backup your Mac you can just delete the files instead since you could restore from Time Machine if necessary
Reboot the Mac
Turn ON WI-Fi from the wireless network menu again
This forces OS X to recreate all network configuration files. This alone may resolve your problems, but if you're continuing to have trouble we recommend following through with the second step which means using some custom network settings.