Q: OSX Yosemite Wifi issues

setv6automatic Wi-Fi

Nope;"setv4automatic Wi-Fi" I think. For now.

i think your find that turning IPv6 off and on solves the whole wifi issue and slow shutdowns

Here's what worked for me:

I just went to System Preferences > Network > Network Name.   After the upgrade to Yosemite for some reason it bumped me to my neighbor's network.  I just selected my own network from the drop-down menu and all is good now.  My AirPort Extreme is visible and I can print now.

My wifi becomes unresponsive after about 5 seconds.... I have to turn the wifi off then on quickly navigate then repeat.  I tried all the fixes that have been posted around the place... Got so frustrated I even tried punching the screen....That didn't work in case you are tempted to try.

Hi all,

Had terrible wi-fi issues ever since upgrading my 2013 iMac 27 from Mavericks to Yosemite.

Wi-fi performance would be very very slow, often not showing it had disconnected, but not being able to access everything.  I had tried many of the solutions out there, including removing wifi preference files, removing wifi adapter from network pane and re-configuring, trying to create a new location etc. etc.  Nothing was working.  I'm connecting to an Airport Extreme, which I also tried re-configuring to 2.5Mhz, 802.11n only etc. etc., but none of these changes worked either.

All other devices in the house were absolutely fine, so I knew it was a Yosemite issue.

I'm pretty tech savvy, have a degree in computer science and develop for a living, but this was starting to have me beat.  I signed up to the Apple beta program so that I could get the latest release, but that didn't solve anything either.

Another problem I had was that my preferences pane in finder was completely blank, and I tracked that issue down to this : http://discuss.binaryage.com/t/missing-finder-preferences-pane-yosemite-10-10-an d-tf-1-6-12/2669.  The last solution that thread to fix the finder preferences pane was to uninstall Box Sync, which I do have installed.  So I followed this guide to uninstall box sync : https://support.box.com/hc/en-us/articles/200523858, rebooted my computer and guess what, finder was fixed, but so it would seem is my WiFi. 

I've been using the computer for about an hour now and my network connection is just fine.  I can't get my head around how Box Sync would effect my WiFi in such a manner, and I hope I'm not speaking to early, but I've been using the computer for about an hour now and everything seem fine.  Previously I'd had wifi issues within minutes, if not immediately.

Could Box Sync really have been the problem for me...  It looks like it, but I find it hard to believe or understand.

:wq

I have had the same issues with Yosemite.
In the end i got it fixed by going into my router settings. My wifi was set to "Greenfield" only (802.11n) which resulted in poor wifi speeds. When i set it back to mixed 802.11 b/g/n my wifi speeds got back up. Maybe this helps some of you.

I've solved solved my problem with Yosemite and WiFi.

Just configured IPv4 manually (not using DHCP) and rebooted my Linksys WRT 120N.

No more up and down WiFi connection!!!!

Now is running smoothly and fast.

My 2 cents.

Dario from BA wrote:

 

I've solved solved my problem with Yosemite and WiFi.

Just configured IPv4 manually (not using DHCP) and rebooted my Linksys WRT 120N.

No more up and down WiFi connection!!!!

Now is running smoothly and fast.

 

My 2 cents.

I am not having issues no more with wifo or with DCHP, myself. But there are plenty who do.

Perhaps all those who configure manually, would care to actually explain what manual means. As in, what to put in to those manual fields:

IPv4 Address:

Subnet mask:

Router:

So that others with little experience in that field can actually gain something from reading this

I would find that very useful because the discussion around IPv4, IPv6 has me totally lost ...   I luv my Mac b/c I don't have to be a pseudo programmer lol

Thanks

Same here. I'd really appreciate knowing what those settings entail.

In the meantime - and it might be a completely dumb question, but - would choosing the Manual option in "Configure IPv6" and then leaving all three options empty, essentially mean turning IPv6 off? Again, I apologize if this is a dumb suggestion; I am one of those people who are in the dark and just trying to find a way to have a working wifi connection until Apple fixes whatever they messed up.

kaym wrote:

 

I would find that very useful because the discussion around IPv4, IPv6 has me totally lost ...   I luv my Mac b/c I don't have to be a pseudo programmer lol

Thanks

;-) There are applications on this planet that are incredible but that no one knows about. Reason is that the makers of it, write documentation aimed @ themselves rather than their indented audience. So no one but themselves are able to operate the software, aside from freaks who take the time and do it autodidact-ly. Adobe Speedgrade would be one example. Incredible video app that very few are using because the documentation is virtually non-existent ;-)

So - all you DCHP and InternetProtocol freaks, share the love - and preferably not just so that you can understand it but so that a layman can too ;-)

kevinski_uk wrote:

 

you can turn it off

 

and if you run nettop  in terminal you will notice that tcp6 is what is causing it to run slow

 

open  another terminal

 

networksetup -setv6off Wi-Fi

 

type your password

 

turn wifi off and on

 

wait for established tcp6 link to disappear in at top of nettop window

 

then run networksetup -setv6automatic Wi-Fi

type your password

 

turn wifi off and on

 

problem gone

For those complaining about difficulty understanding, this post is very clear. I stopped before the "networksetup -setv6automatic Wi-Fi" step but it seems to be working for now. Several hours of internet with only 2 drops that came back up quickly.

in answer to your need to know why

IPv4 is what we use now i.e. 192.168.0.1

IPv6 is what we need when a gazzilion devices are in every home

and I think IPv6 is used by back to my mac, airport extreme and time machine to name a few

so not a good idea to turn and leave it off if you are going to use any of them although i think they default to IPv4 if it can't use IPv6

the reason is to re-write the default IPv6 config files which is what is causing the issue

and basically this is how you configure the network interfaces from the command line instead of the GUI in this case it the WIFI

networksetup -setv6off Wi-Fi

sets IPv6 to off

and

networksetup -setv6automatic Wi-Fi

sets IPv6 to automatically (on)

you can set it via the GUI i posted the instructions yesterday on page 55 of this thread but don't bother with setting them all to manual unless it still doesn't work

once done you can set your wifi how you like with DHCP or manually

it really is that simple!

I do appreciate you taking the time to respond.

I'll try to figure it all out now (seriously, I am that much of a very average user that I need to spend some time understanding this,) and once I do, I'll try it!

Thank you, again!

I'm just going to wait for a fix, can't be arsed with fiddling about. This is why I bought a Mac after 25 years of fannying about with Windows PCs. It's not really that much of a problem to me, just means I can't use my track pad and I have to plug a jack lead into my speaker.