If your problem is that your Mac has frozen in the middle of a task, or an app has become unresponsive, it is possible to Force Quit it by right clicking/control clicking on its icon in the Dock. To start up in safe mode, start your Mac and then press and hold the Shift key. The Apple logo will appear and then the login screen. You can release the Shift key when the Apple logo disappears. How To Troubleshoot Your Mac! Troubleshooting a Mac is different from troubleshooting a PC, but not all that different. Use your Mac's built-in startup optio. Now run startmol -osx, and we can set up the network on the Mac OS X side. MOL creates a network tunnel called tun0 at the Linux end, and en3 on the Mac OS X end. Once you have logged into to Mac OS X open up the system preferences. Make sure that en3 is set to configure with DHCP.
1. WiFi Problems
The WiFi problems are among the most common issues with OS X Yosemite. As a lag and unstable network can easily kill the productivity and fun, the slow internet seems to be a real problem. Apple had released v10.10.1 update in an attempt to fix this problem, however that's not entirely the solution and many users still suffer from WiFi issues. How to get rid of the lingering wireless issues? Check the fix below.
Fix WiFi problem:
Option 1: This issue usually pertains to an ineffective Wi-Fi driver. There are some common solutions to this problem as well as many other OS X . These may or may not works, but you are suggested to try those fixes before go to more complex settings: Reset hardware settings on your system, including the PRAM (see here) and System Management Controller (see here); Restart in to Safe Mode (hold Shift at startup), and then restart normally again; Run a permissions fix on the boot drive using Disk Utility; Disable any security software, including the OS X firewall in the Security system preferences; Restart your router, and update its firmware, if applicable.
Option 2: Check your wireless and router settings to verify the common internet issues and check if there are any interferences from other multiple wireless access points, as the 2.4 Ghz band Wi-Fi can easily affected by the cordless phones, neighboring routers, and other gadgets operating on the same frequency. It the Yosemite wifi issues still continue, try to set up a new Location to get rid of any possible configuration errors.
Mac Os X Troubleshooting How To Real Solutions For Mac Os
Actually, nothing is perfect. Though you upgrade to macOS Sierra or Mac OS X 10.13, you will still face the macOS 10.13 update problems, like logout after macOS 10.13 upgrades, battery life drains fast issues, etc. Maybe the Wi-Fi problem is eased to certain extent, but another problem correspondingly ensue. Each has each troubles.
