Q: OSX Yosemite Wifi issues

This comment of yours is looking great, jfialkowski,

most plaintiffs (sorry for the paralegal term, it seems most convenient) here seem to use older routers, be it 3rd party or older Airport extremes/expresses.

Maximum Transmission Unit may well be another factor to exclude out of the equation.

It may not solve all problems in this here swamp, but surely may help solve some! 

Hi Cubism,

the thing with OSX is that it rebuilds caches over time. Thence my "Safe Mode" and "clean start" suggestions: they clear caches. So thank you for corroborating my theory!

At least now we know the blimey Yosemite can behave sometimes. Next will be finding out what exactly misbehaves...

To be continued...

Cubism, as you have read, Airdrop may be a serious spoiler here. Turn it off and try again. And thank you, I feel we're heading in the right direction here! At last.

Would you happen to know this?

When disabling AWDL and AirDrop, after typing the following command at the OSX terminal:  sudo ifconfig awdl0 down  you are then asked for your password. When I enter this and hit return I get NO feedback at all. Even when I enter my password the cursor does not move.

Is that normal? I'm not 100% convinced I've disabled it.

HOW DO YOU DISABLE AIRDROP?

now I am running it 24 hours. from time to time there are some ping dropouts but this is I guess because of the ISP in the hotel where I stay try to disable bluetooth adapter. Handoff I have still enabled.

Has anyone running a mid-2012 MacBook had any success of any kind? (I've tried disabling AirDrop, creating new network locations, deleting network pref. files, etc.) Nothing has helped in the slightest. Like many 2012 users, my WiFi doesn't disconnect, but it slows down to 10kpbs or less for hours at a time and there's absolutely nothing I can do about it.

OneSmallDrop

Nice name:  It reminds me of the boat we're all in, where no matter what we try to get Apple to fix this, we're just a small drop in the ocean to them. Most will be hooked up on Mavericks, or on Ethernet, blissfully unaware of our turmoil trying to stay afloat.

Yes, I am on a Oct 2012 MacBook Air, and yes, I can connect, but for 3-mins max at normal speed (when I restart) and then I'm relegated to the same 1 - 100 kbs speeds you also get.

I have tried EVERYTHING on this forum, and EVERYTHING available on searching Google. Nothing works longer than 3 hours. Most only work for 10-15 mins.

The pain is, MacBook Airs can't connect to Ethernet without buying extras (like a Thunderbolt display). I run a small business, so lack of Internet is crippling me.

I've been solely on Macs now for 20 years.  I own a MacBook Air and 7 iMacs (for work--which is 500 miles away. I prefer to work from home, and I'm not flying 1+ hours to get Internet!)

When I updated to Mavericks years back, same thing happened with WiFi....

[I got booted due to WiFi. Thought I'd lost all this message but the forum autosaved the first half. Can't be bothered retyping it all]

Basically, if 10.10.2 doesn't come out this weekend, and also fix this WiFi AirDrop/Bluetooth issue I will be saying goodbye to Apple after 20 years.  I will be following the route of my friends who wave their Microsoft Surface Pro 3's  and their Android Moto X's in my face.  They look like good and reliable devices, which is what I need with work.  Apple have had way too many problems in the last year for my liking.

About to press send. Praying it works...

I found the wifi issues stem from wireless router settings used with Mavericks and previous OSes.

Yosemite appears to want more secure settings.

Change the wireless security settings on your router to those shown below:

Network Authentication to WAP2 -PSK and Encryption to TKIP+AES.

These settings produce rock solid wireless with Yosemite but give Mavericks the very same wifi problems.

you could also try reserving ip addresses of devices that connect to the router. I logged into my dlink router (dir-615) and manual wireless set up, clicked reserve, save and save. the router rebooted, and so far my macbook 5,2 (early 2009 model) is connecting fine. I turned off ipv6, refreshed plist files, restored the host file, etc. as well, just in case, but reserving the ip addresses seemed to do the trick for me. it was very frustrating, so maybe this idea can help you, good luck~

I see we have broken the 300,000 views mark: well done Tom, did you imagine your post would be so popular?!!

Thanks Have tried this just now Will let you know

BTW to save you entering Hardware/software details each post there's a My Products section in your profile for this community - click on Welcome stefci

Your wish is my command...:)

Problem description:

Yosemite10.10.1 /wifi/ slow running

This etrecheck AFTER making various suggested changes on this and other Yos 10.10.1 related threads.  Have the original as well.

EtreCheck version: 2.0.11 (98)

Report generated 27 November 2014 16:18:18 GMT

Hardware Information: ℹ️

  MacBook Pro (13-inch, Mid 2010) (Verified)

  MacBook Pro - model: MacBookPro7,1

  1 2.4 GHz Intel Core 2 Duo CPU: 2-core

  4 GB RAM Upgradeable

  BANK 0/DIMM0

  2 GB DDR3 1067 MHz ok

  BANK 1/DIMM0

  2 GB DDR3 1067 MHz ok

  Bluetooth: Old - Handoff/Airdrop2 not supported

  Wireless:  en1: 802.11 a/b/g/n

Video Information: ℹ️

  NVIDIA GeForce 320M - VRAM: 256 MB

  Color LCD 1280 x 800

  DELL E207WFP 1680 x 1050 @ 60 Hz

System Software: ℹ️

  OS X 10.10.1 (14B25) - Uptime: 4:48:15

Disk Information: ℹ️

  ST9250315ASG disk0 : (250.06 GB)

  S.M.A.R.T. Status: Verified

  EFI (disk0s1) <not mounted> : 210 MB

  Macintosh HD (disk0s2) /  [Startup]: 249.07 GB (59.77 GB free)

  Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB

  MATSHITADVD-R   UJ-898

USB Information: ℹ️

  Apple Internal Memory Card Reader

  Apple Inc. Built-in iSight

  Apple Inc. BRCM2046 Hub

  Apple Inc. Bluetooth USB Host Controller

  Apple Computer, Inc. IR Receiver

  Apple Inc. Apple Internal Keyboard / Trackpad

Firewire Information: ℹ️

  G-TECH OEM ATA Device 00 800mbit - 800mbit max

  S.M.A.R.T. Status: Verified

  EFI (disk1s1) <not mounted> : 210 MB

  Time Machine Backups (disk1s2) /Volumes/Time Machine Backups : 600.00 GB (5.08 GB free)

  BACK UP ANN (disk1s3) /Volumes/BACK UP ANN : 149.81 GB (459 KB free)

Gatekeeper: ℹ️

  Mac App Store and identified developers

Kernel Extensions: ℹ️

  /System/Library/Extensions

  [not loaded] com.silex.driver.sxuptp (1.4.3) Support

Launch Agents: ℹ️

  [running] com.brother.LOGINserver.plist Support

  [loaded] com.google.keystone.agent.plist Support

  [loaded] com.oracle.java.Java-Updater.plist Support

Launch Daemons: ℹ️

  [loaded] com.adobe.fpsaud.plist Support

  [loaded] com.google.keystone.daemon.plist Support

  [loaded] com.macpaw.CleanMyMac2.Agent.plist Support

  [loaded] com.microsoft.office.licensing.helper.plist Support

  [loaded] com.oracle.java.Helper-Tool.plist Support

  [loaded] com.oracle.java.JavaUpdateHelper.plist Support

User Launch Agents: ℹ️

  [loaded] com.adobe.ARM.[...].plist Support

  [invalid?] com.google.Chrome.framework.plist Support

User Login Items: ℹ️

  WePrint Server ApplicationHidden (/Applications/WePrint Server.app)

  InstUtilLaunch Application (/Library/Printers/Brother/Utilities/InstallUtility.app/Contents/Resources/Inst UtilLaunch.app)

Internet Plug-ins: ℹ️

  o1dbrowserplugin: Version: 5.38.6.0 - SDK 10.8 Support

  Default Browser: Version: 600 - SDK 10.10

  Flip4Mac WMV Plugin: Version: 3.2.0.16   - SDK 10.8 Support

  Silverlight: Version: 5.1.10411.0 - SDK 10.6 Support

  FlashPlayer-10.6: Version: 15.0.0.223 - SDK 10.6 Support

  Flash Player: Version: 15.0.0.223 - SDK 10.6 Mismatch! Adobe recommends 15.0.0.239

  QuickTime Plugin: Version: 7.7.3

  googletalkbrowserplugin: Version: 5.38.6.0 - SDK 10.8 Support

  SharePointBrowserPlugin: Version: 14.4.5 - SDK 10.6 Support

  SquareClock_Production_HBMV1: Version: 34c0760001cf44ed

  iPhotoPhotocast: Version: 7.0 - SDK 10.8

  JavaAppletPlugin: Version: Java 7 Update 71 Check version

User Internet Plug-ins: ℹ️

  Google Earth Web Plug-in: Version: 7.1 Support

Safari Extensions: ℹ️

  Facebook Cleaner

  eWallet AutoPass

  Facebook Improved

  Save to Pocket

  clea.nr Videos

3rd Party Preference Panes: ℹ️

  Flash Player  Support

  Flip4Mac WMV  Support

  Java  Support

Time Machine: ℹ️

  Skip System Files: NO

  Mobile backups: OFF

  Auto backup: YES

  Volumes being backed up:

  Macintosh HD: Disk size: 249.07 GB Disk used: 189.30 GB

  Destinations:

  Time Machine Backups [Local]

  Total size: 600.00 GB

  Total number of backups: 60

  Oldest backup: 2013-03-10 14:38:47 +0000

  Last backup: 2014-11-27 15:39:52 +0000

  Size of backup disk: Adequate

  Backup size 600.00 GB > (Disk used 189.30 GB X 3)

Top Processes by CPU: ℹ️

      20% mds

      10% WindowServer

      0% WePrint Server

      0% AppleSpell

      0% ps

Top Processes by Memory: ℹ️

  168 MB mds_stores

  163 MB Mail

  125 MB Safari

  94 MB com.apple.WebKit.WebContent

  90 MB ocspd

Virtual Memory Information: ℹ️

  51 MB Free RAM

  1.44 GB Active RAM

  1.36 GB Inactive RAM

  613 MB Wired RAM

  4.07 GB Page-ins

  19 MB Page-outs

On my 2 x bandwidth router should I change both MTUs to 1400?

To all really, not just stefci:

if we make these various suggested changes (I have made quite a few) then Apple eventually releases 10.10.2 whats the worst that can happen? These changes get revered or these changes stop 10.2 from working or....