Q: OSX Yosemite Wifi issues

In reply to PFJ30 i would say YES,

Also It's not just WIFI related, i was also randomly losing connectivity with a cabled iMac to cabled MBP (not directly)

it's got to be related to cache's because when mine becomes unusable if i reboot my internet wifi router, wifi extender and switch and then power off my MBP by holding down the power button (i can only assume this action resets cache's on the MBP because powering down nicely doesn't always work ) then all is fine again for a week or so.

My router DHCP server set to to hand out reserved IP's and all my devices set to using DHCP with manual address and IPv6 set to link local or manual, didn't matter which but i found when set to auto the drops become more random and often.

I also have a separate partition on my MBP with 10.9.4 and it has no issues talking to my cabled Yosemite iMac. However, i have noticed that booting up Mavericks and running arp -a in terminal my iMac hostname is known but doing the same in Yosemite my iMac is unknown and it doesn't matter what do it is always unknown in Yosemite terminal but still shows up in finder as known (strange but true)

So that alone says DNS to me, which is obtained from the router and would also explain why people with newer routers don't appear to have this problem and why it works fine in different places for some

The frequencies of my drops are every 3 or 4 days now and simply turning off and on WIFI gets it going again but after a week or so it becomes totally unusable  until i do what i do above. whereas before it was totally unusable after 5 to 10 minutes.

On a different note I read this a while back

http://appleinsider.com/articles/14/04/09/apple-nabs-senior-rf-engineers-from-br oadcom-amid-rumors-of-new-in-house-baseband-team

Apple pushed out a new version of Safari that cleared up my slow Safari issues. Its now as good as Firefox again. At first I thought this cleared up all WiFi issues, but just this morning I had another dropout. I'll try the network assistant thing again.
If it makes anyone feel better, I was just in the Apple store on 5th Ave in NYC. The place was packed at lunchtime as usual. People stacked up 8 deep across 12 "geniuses" with pre-genius drones paving the way before you can talk to an actual genius. I tried the new flagship 5K 27-inch desktop Mac. Guess what ? It had no WiFi. Just an exclamation point over the ghosted WiFi logo on top. I tried to find another network but I didn't have the admin password. Within 2 minutes it re-connected automatically to the in store WiFi. It was running 10.10.1 just like I am on my Macbook at home. They couldn't even keep it working in the store.

I have had similar troubles since upping to Yosemite.  They are less consistent, though.  I upped to 10.10.1 and things are different and maybe just a bit less frequent.  Very frustrating when working and trying to maintain a train of thought.

Maybe 10.10.2 will help.  I have read that it is in beta.  Any info out there?

I have had similar troubles since upping to Yosemite.  They are less consistent, though.  I upped to 10.10.1 and things are different and maybe just a bit less frequent.  Very frustrating when working and trying to maintain a train of thought.

Maybe 10.10.2 will help.  I have read that it is in beta.  Any info out there?

Early 2011 13" MacBook Pro.  Also worked fine with Mavericks, Lion and Snow Leopard.

In it's truest form of "dropping wifi" imho, yes it means the pc/device lost connection to the router.

So is it a bogus email? I really couldn't tell, it was written so poorly and generically. Made no sense, I didn't get an invite to download the seed.

Hi,

 

I work in the Apple WiFi Engineering team. You have been chosen to participate in a seed program that has WiFi fixes. The invite to participate in the seed is already sent out. We would like to know if your WiFi issues are fixed or not after upgrading to the seed?

 

Thanks,

Apple WiFi Engineering

gadgetcoma wrote:

Time for an update. I received a request from Apple to run wireless diagnostics when the problem occurs and send that to them too. Since then, I realized that I have been hit by both of the problems identified by Mario Ciabarra (https://medium.com/@mariociabarra/wifriedx-in-depth-look-at-yosemite-wifi-and-aw dl-airdrop-41a93eb22e48). The wake from sleep/bonjour proxy issue was what I was able to capture in my first submission to Apple. So, I used Mario's instructions on how to reproduce the performance problem and sure enough, I got slow performance. When I turned off awdl0, performance returned to normal. I captured diagnostics from both scenarios (awdl0 on and off) and captured speed test results for both. (With awdl0 on, speedtest reported 8M download 13M upload, with it off, speed was 57M/60M). I then sent Apple the diagnostic results, speedtest results and, as a way to explain how I reproduced the issue, I included a copy of Mario's article . Let's hope that gets their attention.

I heard back from Apple just now. They see the two issues I've been experiencing in the diagnostics I sent them. (Those two issues are dropping connections and slow performance.) The support rep told me they are working to resolve them in a future update and they are aware of other reports including threads like this. Unfortunately, she could not confirm exactly when the future update would occur. I interpreted that to mean that they aren't close enough to fixing them all yet and 10.10.2 may not be the complete fix. At least, we have acknowledgment of the issues. Let's hope they can fix them soon.

I've been having the same problem and think I finally got a solution!  This is from a senior person in their wireless area who really seemed to know what he was talking about.  From the Go Menu in the Finder, he had me go to MacIntosh HD/Library/Preferences/System Config.  He had me delete the System Config file.  Then he had me restart the computer.  This causes the computer to establish a new System Config file that was corrected.  It's now working fine!

BTW, I I had previously updated to 10.10.1, had repaired the disk, and had reinstalled the operating system, all without success.  Wifi was dropping every 10-15 minutes.  Now it's working!

Don't use your routers default DNS settings.

Add Googles DNS servers to your computers wifi network settings and see if that fixes the issue.

8.8.8.8 and 8.8.4.4

There is info out here in the compost seed bed but NDA etc says we can't talk about it but

Nil desperandum

SuperMario's fix was one of the few here I didn't try before doing a clean Yos 10.1.1 reinstall from internet as a sidewise after installing new SDD drive (WOW! fast or what?) since when at least the 2.4ghz and wan connection has been fine (except when my ISP f*cks me about.

But I have turned off AirDrop so am about to turn it back on and send the nice man at Apple wireless an updated diagnostic. If you are in the SEED group see my post there this morning.

FFIW I was reading somewhere (maybe here!) that old modem and router passwords could be saved in the Keychain and it could be worth deleting them.  Although I had deleted all old network settings on my iMac mid 2011, I decided to look.  I went into Keychain Access/System and sure enough there were logins for old modems that have not been used for up to three years.  When I tried to delete them Keychain Access asked me for a password, then crashed.  I ran Keychain First Aid with no success.  I then started in Safe Boot mode with no success either.  Finally I searched online for a solution and found a suggestion to create a guest user account and delete the passwords from there.  I duly did this.  When I opened Keychain Access, and deleted the passwords, it asked me for my admin user name and password.  When I supplied them, the deletion took place uneventfully.

On restarting the iMac, I would swear that it's running better than it has for two years.  Placebo effect? My imagination?  Possibly, but I'm inclined to think the offending items were up to no good, otherwise why would trying to delete them have crashed Keychain Access?  Is it relevant, I don't know, but having tried most of the fixes here, my connection is fairly stable although download speeds are not great.

I had repeated problems with Wifi connecting and disconnecting every few minutes, ultimately becoming every few seconds.  Nothing helped with the mac, tried the resets, network settings, bluetooth, standing on my head etc from all the help sites.  Finally broke down and bought a new medium quality netgear router from Staples and everything is perfect now.  Perhaps it was just old vs new networking.

I've been blazing for a few hours with no breakdowns after changing the DNS.