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Nov 17, 2014 12:20 PM in response to tomstephens89by Stssa,Update didn't work for me either, my problem is different than most of you guys are having. Mine runs fine until I close the screen and let it sleep, when I reopen the screen, wifi works for 5 seconds and then it drops, I have to turn off wifi and turn it back on, after doing this 5 -8 times it starts working fine, until the next time I close the screen this is ******* me off real bad.
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Nov 17, 2014 12:22 PM in response to tomstephens89by tophersal,MacBook Pro (Retina, Mid 2012)
Yosemite 10.10
Linksys WRT1900AC - running 2.4 and 5ghz networks (Currently on 5ghz)
Changed Keychain Access on my wireless networks to 'Allow all applications to access this item' (Keychain Access > [double click your SSID] > Access Control > Allow all applications to access this item.
I saw this potential solution a previous post and tried it - It has worked for me. Haven't dropped wifi for about 18 hours - longest run yet. Won't be updating to 10.10.1 anytime soon based on comments I've seen up this point.
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Nov 17, 2014 12:22 PM in response to MortenJamesCarlsenby Warszawa,As I expected, no fix from Apple and it will take a while before they resolve it. Because of a specific security encryption Apple devices are not the easiest to connect to WiFi network, however magnitude of the problem created with the Yosemite install is scary. I have house load of Apple devices and from this moment will always have a fear of installing anything new from them. As for now my problem seams to be resolved after spending $200.00 on the new Air Port Extreme and I'll not update Yosemite until Apple finds the sure fix.
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Nov 17, 2014 12:23 PM in response to Stssaby MortenJamesCarlsen,I don't dare to put my rMBP 2014 to sleep. I shut it down each time before I close it. Reboot is about 8 seconds so that is not so bad. Compared to 20 minutes of nervy troubleshooting if I don't.
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Nov 17, 2014 12:23 PM in response to tomstephens89by Elkhawg,Well to no surprise, 10.10.1 provided no fix here either. This is ridiculous.
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Nov 17, 2014 12:24 PM in response to tophersalby MortenJamesCarlsen,tophersal wrote:
MacBook Pro (Retina, Mid 2012)
Yosemite 10.10
Linksys WRT1900AC - running 2.4 and 5ghz networks (Currently on 5ghz)
Changed Keychain Access on my wireless networks to 'Allow all applications to access this item' (Keychain Access > [double click your SSID] > Access Control > Allow all applications to access this item.
I saw this potential solution a previous post and tried it - It has worked for me. Haven't dropped wifi for about 18 hours - longest run yet. Won't be updating to 10.10.1 anytime soon based on comments I've seen up this point.
Alas, this too is merely a temporary fix. Among many.
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Nov 17, 2014 1:00 PM in response to Monty72by johnny10k,My problem was resolved by turning off my bluetooth devices (keyboard and trackpad). With bluetooth on, but nothing connected to it everything has been working great for 1+ weeks.
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Nov 17, 2014 1:03 PM in response to johnny10kby Monty72,LOL I wouldn't say the problem was resolved as not connecting anything kind of defeats the object of Bluetooth
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Nov 17, 2014 1:49 PM in response to MortenJamesCarlsenby Warszawa,James, there is a good application in Apple Applications Store called "Caffeine" which could well serve a purpose of keeping your MBP awake. It installs an icon in the upper menu bar which makes easy to toggle a sleep function "ON" and "OFF". Check it out.
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Nov 17, 2014 3:21 PM in response to hexdiyby hexdiy,Well, yesterday I've unvoluntarily had an Apple person or -bot remove a post of mine here. Twice. Worded slightly differently on my part, so as to exclude possibly offensive language or terms.Thought I'd let it slip until the release of 10.10.1, see if that would bring any relief here.
Seeing it did not, I feel compelled to repeat the gist of my story: I suspect the culprit of the issues in this topic to be com.apple.kpi.libkern (14.0.0)
BTW: does Yo 10.10.1 carry a newer version of that Yo 10.10.0 library kernel?
You can check by opening a Terminal window and typing "kextstat", as most of you will know.
In fear of being rebuked again, I leave the research to you guys...
And barely dare repeat my suggestion you temporarily revert to the com.apple.kpi.libkern (13.0.0) that came with your Mavericks. Making sure you have a solid general backup of course, along with a backup of com.apple.kpi.libkern (14.0.0), so you can easily revert.
This is sparsely charted territory, so be very careful experimenting. And good luck to you all!
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Nov 17, 2014 3:32 PM in response to hexdiyby MortenJamesCarlsen,4 118 0xffffff7f80a00000 0xbf50 0xbf50 com.apple.kpi.libkern (14.0.0)
Taken from 10.10.01 Official Release !
I DID copy and paste your text to a text editor... AS I figured it would be deleted ;-)
I am going to check what happens with 10.10.01 the next 24 hours before doing anything... I WILL give it the benefit of the doubt that after re-doing my usual network-fix stuff it will be a permanent fix... However, IF the issue re-appears I am going to try your suggestion. And IF it works I am going to report it to Apple via a proper BUG Report...
While being a frustrated user myself I DO feel for Apple in this case. It is VERY frustrating to NOT be able to reproduce and thus FIX a bug in ones software. And we amidst all this network trouble we should NOT forget how great yosemite really is...
I booted from Mavericks today - to use an old app not compat. with 10.10. I was VERY surprised over how smooth 10.10 is in comparison to 10.9. And how awesome it looks. IMO - Yosemite is the best version Apple has yet released. WIFI and Network issues of course being nasty. Just saying, the OS is definitely an amazing piece of engineering !
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Nov 17, 2014 4:14 PM in response to MortenJamesCarlsenby hexdiy,Thank you Morten James! What happened to my posts yesterday was quite scary.
[quote] I DID copy and paste your text to a text editor... AS I figured it would be deleted ;-)[/quote] You did, did you? Well, this is my first. Though I know Apple Discussions gets policed, I'm just thinking along and trying to help solve problems. Even if I have no Yosemite compatible hardware. No wrong in that, is there? Just reconnoitering...
That being said, I do feel for Apple too: remember the still unidentified WD/ Mavericks bug upon the Mav release causing massive data loss with some users?
Excruciatingly impossible to replicate. Ouch! Sorry for the offtopic.
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Nov 17, 2014 4:55 PM in response to Monty72by theforumenjoyer,Ugh, thought I would finally be able to use my bluetooth mouse and keyboard again after this update. Nope! Still getting download speeds under 0.5 mbps. So frustrating.



