Hi Brian, Just a very quick reply that might help. Restart the computer in safe mode <http://support.apple.com/kb/ht1455>. Certain caches maintained by the system will be rebuilt. Safe mode is much slower to start up than normal. The next normal startup may also be somewhat slow. When the login screen appears, restart as usual (not in safe mode) and test. There's no need to log in while in safe mode.
Cheers, Ronni > On 16 May 2015, at 8:20 am, Brian Risbey <risb...@bigpond.com> wrote: > > Hi Ronni, > thank you for your detailed instructions. > I have gone through your removal of Pref files and no change. > followed your instructions, connecting quicker now but still not working 100%, > and a new message: > > Unapproved caller. > SecurityAgent may only be invoked by Apple software. > > > > Brian > > > On 11 May 2015, at 9:09 pm, Ronni Brown <ro...@mac.com > <mailto:ro...@mac.com>> wrote: > > Hi Brian & Daniel, > > I had to rush out to an appointment after my first reply & have just arrived > back home. > >> On 11 May 2015, at 7:50 pm, Daniel Kerr <dan...@macwizardry.com.au >> <mailto:dan...@macwizardry.com.au>> wrote: >> >> There's a couple of other things to try as well (removing >> SystemConfiguration folder from Macintosh HD-Library-Preferences) and >> removing "ByHosts" folder from Macintosh HD - Users - your name - >> Library-Preferences) as well,….but I'd start with the above first and let us >> know how you go. > > Hi Daniel, I think I posted this to the WAMUG List some time back, or > mentioned it to you at some time when a client had a similar problem. > > Fix Wi-Fi Problems in OS X Yosemite > > 1: Remove Network Configuration & Preference Files > > Manually trashing the network plist files is a recommended troubleshooting. > This is one of those tricks that consistently resolves even the most stubborn > wireless problems on Macs of nearly 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: > > 1. Turn Off Wi-Fi from the Wireless menu item > > 2. From the OS X Finder, hit Command+Shift+G and enter the following path: > /Library/Preferences/SystemConfiguration/ > > 3. Within this folder locate and select the following files: > com.apple.airport.preferences.plist > com.apple.eapolclient.plist > com.apple.IPConfiguration.control.plist > com.apple.nat.plist > com.apple.network.eapolclient.configuration.plist > com.apple.wifi.message-tracer.plist > NetworkInterfaces.plist > preferences.plist > — > > 4. 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 need be. > > 5. Reboot the Mac > > 6. 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 follow the > second step which means using some custom network settings. > > If the Second Step is required I’ll post it... > > Cheers, > Ronni > > 13-inch MacBook Air (April 2014) > 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz > 8GB 1600MHz LPDDR3 SDRAM > 512GB PCIe-based Flash Storage > > OS X Yosemite 10.10.2 >
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