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Dec 8, 2014 2:29 PM in response to tomstephens89by nik_qc,I also can definitely report WiFi issues with my Retina MBP that started after upgrading to Yosemite. The most obvious issue is the speed. I even started blaming my Internet provider for speed issues...until I did a test over ethernet connection. I have 20 Mbit down / 10 up connection and I used to test its speed using speedtest.net many times from my MBP. I was always getting almost precise 20.7 down and something like 9.7 up. After upgrading to Yosemite when I run the same test I get barely 12-13 Mbit/s down and 4-7 up. Very inconsistent but always way lower than when running the same test over ethernet connection. I did not change the router (Apple TimeCapsule by the way).
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Dec 8, 2014 3:18 PM in response to MattyB199by therealikt,This is the new Apple my friend! Routinely releasing major products with known, egregious bugs, in order to hit shareholder timelines.
OSX Yosemite has sold a lot of PC's.
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Dec 8, 2014 4:23 PM in response to therealiktby nhcowboy,I'm in the middle of a long time machine restore back to Mavericks, my internet was completely dead no matter what "fix"
I tried. I tried very single one this forum had to offer. What a disaster Yosemite is, it's cost me way too much oost time and money in my business, I can't even go online to print a usps label.
It takes me ten minutes to get to that page and a 955 kb label takes 16 minutes to download, even though my Ookla speed test clocks me in at 28mb/s. I have a late 2012 mini mac with a brand new airport extreme router, everything Mac. Airport utility shows the airport router constantly connected yet the globe internet icon drops off constantly, and even if it decides to be on trying, to go to any web page is a dismal failure. What a boat anchor! Never again will I look at Apple products as quality products that just work and are intuitive. I shouldn't have to spend weeks entering in terminal commands, resetting router and sytem settings, rebooting, zapping Pram, power cycling the modem and router, you name it. All of this futility to try in vain to perform the most basic tadk of going online, only to go back to Mavericks where I was before ths failure of an operating system. Thanks a lot Apple, as if I don't have enough on my plate this time of year tryng to keep customers happy and me in a job. Steve Jobs would never let this company get so far away from the basics of just plain workable products.
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Dec 8, 2014 4:27 PM in response to tomstephens89by etkal,When testing, do not use your internet provider as a reference or measurement point - only use resources on your local network. Adding your internet router only adds an element of variability which is already inherently unstable.
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Dec 8, 2014 5:20 PM in response to etkalby nik_qc,True, but when comparing two identical scenarios where the only difference is new version of OS and everything else is the same....
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Dec 8, 2014 5:58 PM in response to nik_qcby etkal,Even where your local environment only differs by OS, using resources across your internet provider to make measurements introduces a huge variable. On the same system within the span of minutes I can get wildly variable results when accessing resources outside my local network but across the "internet".
My point was that when performing measurements for statistical comparison you need to eliminate as many variables as possible, ideally restricting data transfers to your local network using known consistent servers and transports. Otherwise your results are not truly meaningful.
{Edit} Note that I am not disagreeing that there is a problem with OS X 10.10.1 Yosemite wi-fi - there *is* a serious problem. I'm just saying that when reporting issues that the loading of web pages from the "internet" is anecdotal and indeterminate by definition. Statistical analysis of data transfer across a controlled network is much more useful to developers (believe me, I've looked at my share of wireshark traces) than slow web pages whose content and remote server performance dependencies is unknown.
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Dec 8, 2014 8:22 PM in response to nik_qcby jilloopy dillupunkt,Some more info to add to the thread. This was a network hardware focused test I tried after running through the other suggestions on this thread – deleting network config files, switching channels, disabling Airdrop (which my 2008 iMac doesn't have as far as I can tell), turning off bluetooth, etc.
The basics are:
2 x iPhone 5s: one running 8.1.1; one running 7.1.1
1 x Macbook Pro, mid 2012, running 10.9.4
1 x iPad 2011 running 7.1
1 x 2008 iMac running 10.10.1
1 x 2013 Airport Express 7.6.4
1 x 2012 Airport Extreme 7.6.4
Prior to Yosemite update I was consistently getting 50+MBPs download, 40+ upload across all devices. After initial Yosemite, IOS and Aiport Ext/Exp updates I saw speed drop across all devices to about 10 – 14 MBPs for a week, then back to normal. After installing 10.10.1 all devices experienced a major drop in download speed, 1.5 to 2.7 MBPs on average.
Called Apple and they suggested I change out the Airport express, their tech did not acknowledge at all that wifi issues were a common problem with Yosemite. After the basics, "Please unplug your...", the tech told me that the problem was my Airport Express and that I should bring it in to the store.
I didn't bother bringing it in to the store but instead bought a new Extreme and Express to do some testing with. Here are the results:
Ethernet cable to Macbook: 121.34 MBPs down/52.12 MBPs up
(Extreme is about 40 feet away down an unobstructed hallway. Express is about 15 feet away, also unobstructed.)
2012 Extreme
iPhone5s / 8.1.1 – 5.32 mbps down / .34 mbps up
iPhone5s / 7.1.1. – 24.12mbps down / 31.19 mbps up
iPad / 7.1 – 31.87 mbps down / 27.75 mbps up
iMac / 10.10.1 – 15.76 mbps down / 7.45 up
Macbook / 10.9.4 – .7mbps down / 1.3 mbps up
2012 Extreme/2013Express
iPhone5s / 8.1.1 – 1.23mbps down / 3.21 mbps up
iPhone5s / 7.1.1. – 32.12mbps down / 41.56 mbps up
iPad / 7.1 – 48.49 mbps down / 36.21 mbps up
iMac / 10.10.1 – 3.37 mbps down / 13.03 up
Macbook / 10.9.4 – .5mbps down / 2.4 mbps up
2012 Extreme/2014 Express
iPhone5s / 8.1.1 – 3.73mbps down / 8.98 mbps up
iPhone5s / 7.1.1. – 35.31mbps down / 44.36 mbps up
iPad / 7.1 – 50.78 mbps down / 39.11 mbps up
iMac / 10.10.1 – 6.13 mbps down / 17.63 up
Macbook / 10.9.4 – 1.21 mbps down / 4.12 mbps up
2014 Extreme
iPhone5s / 8.1.1 – 6.12 mbps down / 1.87 mbps up
iPhone5s / 7.1.1. – 29.61mbps down / 40.74 mbps up
iPad / 7.1 – 42.39 mbps down / 29.12 mbps up
iMac / 10.10.1 – 23.92 mbps down / 41.12 up
Macbook / 10.9.4 – 1.91 mbps down / 2.13 mbps up
2014 Extreme/2013 Express
iPhone5s / 8.1.1 – 7.32 mbps down / 2.37 mbps up
iPhone5s / 7.1.1. – 27.49 mbps down / 43.12 mbps up
iPad / 7.1 – 37.01 mbps down / 32.89 mbps up
iMac / 10.10.1 – 11.78 mbps down / 18.91 up
Macbook / 10.9.4 – 1.78 mbps down / 1.17 mbps up
2014 Extreme/2014 Express
iPhone5s / 8.1.1 – 5.98 mbps down / 2.42 mbps up
iPhone5s / 71.1. – 32.91mbps down / 41.26 mbps up
iPad / 7.1 – 54.79 mbps down / 42.14 mbps up
iMac / 10.10.1 – 10.6.1 mbps down / 16.91 up
Macbook / 10.9.4 – .97 mbps down / 1.43 mbps up
Overall the devices not upgraded performed in their normal range. (Excepting for the Macbook, I replaced the motherboard a few months back after it was water damaged – cold plane, warm battery : condensation – and am now wondering if the antenna was damaged as well.) All the Yosemite/IOS upgrades performed terribly across all configurations. However, the surprising result for me is that unplugging the Express stations used as range extenders and just using the Extreme base stations resulted in a big jump in speed. I'm wondering now if the the Extreme and Express are having a difficult time synching and that is contributing to the loss of speed on my particular set up.
Considering the results I'll be returning the new Extreme and Express stations I purchased and just running the wireless off the 2012 Extreme until Apple fixes this bug.
Have they bothered to release an official acknowledgement that there even is a problem yet? Or are we just going to get a side reference at the next dog and pony show?
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Dec 8, 2014 8:56 PM in response to nhcowboyby admin501,Slow page loading and slow downloads are caused by not having DNS entries in your network preferences.
Try 8.8.8.8 and 8.8.4.4
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Dec 8, 2014 9:04 PM in response to admin501by eas2156,doesn't the computer use router settings?
on the router you can either use the dns from your isp or put in your own primary and secondary dns
I didnt try your idea yet and it wouldn't hurt, I just don't think this is issue
ill try your idea tomorrow though and see (i have slower speeds too)
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Dec 9, 2014 3:28 AM in response to tomstephens89by Davnkaz,So the latest with me and this Yosemite wifi bug. Tried to reset apple TV, now the **** thing cannot connect to my library.
Over this whole nonsense now!
C'mon Apple please sort this out!!
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Dec 9, 2014 11:36 AM in response to eas2156by eas2156,re: "ill try your idea tomorrow though and see..."
update: no change to speed, by putting DNS entries in network preferences
but any ideas are better than none, so good try
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Dec 9, 2014 12:25 PM in response to tomstephens89by Bob7777,One thing that I haven't seen in all these posts (there's a lot, so may have missed it) is that with my Yosemite experience I see that Safari works much worse than it used to even when the network isn't dropping. Many people are reporting slowdowns, etc, but on my system I only see evidence of this in Safari. I surfed the same pages (mostly generic stuff like NY Times and weather.com) in Safari and Firefox and Chrome. Safari (which is a new version with the Yosemite bundle) is much worse than Firefox or Chrome. Has anyone else noticed this ?
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Dec 9, 2014 12:42 PM in response to Davnkazby mccosha,what does the console say when you try to connect? my apple TV is working fine with Y.
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Dec 9, 2014 12:43 PM in response to admin501by mccosha,8.8.8.8 actually slowed me down.
https://code.google.com/p/namebench/ will tell you which DNSs are best for your specific use depending on your area and your ISP