WIFI Problem 10.10.3

Hi, got the same problem with Yosemite 10.10.2. A nightmare! Just downloaded the update 10.10.3. Let's see how it settles the issue as it is suppose to be an improvement on WIFI issue stability.

If not, try to follow the step on OSX daily

http://osxdaily.com/2015/01/30/os-x-10-10-2-yosemite-wi-fi-problems/

I don't know if this will help anyone having Wifi problems after 10.10.3 update, but what worked for me is that i changed the IPv6 configuration from "automatic" to "link-local only".
Open Network preferences > Advanced > TCP/IP tab > Configure IPv6: Link-local only

I had a similar issue on my MacBook Pro (Retina, 15-inch, Late 2013) right after updating to 10.10.3. Every 5 minutes or so my Wi-Fi just stopped working. The problem seems to have resolved when I removed the last.fm scrobbler app.

Hi,

In my MBP15 mid 2014, the problem appears only when BT is on using magic mouse. When I switch it off the wifi works perfect without interruptions.

I have tried all the fixes found in the forums, but any worked for me.

Just a quick surf of the net - reading just the blips that show - wi-fi is an on going problem with Yosemite.

So you all should be reporting your problems to Apple via their support portal

Or

at least give bug feed back at http://www.apple.com/feedback/

(You can also point them to this thread - for more detail)

I had no problem with wifi on my 2013 MBP until I installed 10.10.3, then the disconnect problem started. Disabled Bluetooth and the problem disapppeared.

I siwtched of my Bluetooth and connected a USB Mouse. Now the Wifi don't drop me off anymore but the Wifi is still slow. Something between 54Mbit and down to 11 Mbit on 2,4Ghz Network.

scott_andrews27,

Did turning off the mouse help you any in your case ?

After updating to OS 10.10.3 yesterday, my Macbook Pro 15' retina can not connect to internet through home wifi anymore. After chatting with Apple Support staff, I did the PRAM reset which solved the problem. Now my wifi internet access is back to normal.

To do PRAM reset, you first turn off your mac. While holding Option, Command, R and P, and On-Off switch, wait for the startup sound twice, then release all the keys. You will hear the startup sound one more time. Once your system is up, the network should work now (if you have the same problem as mine). Hope it helps!

fyshu

I forgot that I also rebooted my wifi router. If PRAM reset does not do the trick, try this too.

My wifi broke as soon as i installed the first Yosemite release in October 2014. So far, three Yosemite patches, and none of them have fixed it:

Yosemite 10.10 Wifi broke

Yosemite 10.10.1 Wifi still doesn't work.

Yosemite 10.10.2 Wifi still doesn't work.

Yosemite 10.10.3 Wifi still doesn't work.

04.09.2015 at 1:37am starting running and monitoring wifi after update to OS X Yosemite 10.10.3 (14D131)

04.11.2015 at 8:04pm, after having been out all day, arrive home to find that wifi has dropped.

regards,

js.

Step 7 & 8 helped me!

I had WiFi problem after updating to 10.10.3 only on my 5GHz network and now it has been solved by following this steps! Thanks guys!

Step 7

Reset the System Management Controller.

Step 8

Reset the PRAM.

So my intermittent connection problems seem to be related to iCloud Photo Library uploading in the background.

I can reproduce the problem by pinging an internet address (say www.google.com), Response times will be between 300-600ms.

Going to photos -> preferences, and "pause for one day" in the iCloud section will immediately fix the network problem. Resuming the connection will cause the problem again after 10 seconds.

Something for everyone else to try.

Thank you for information, it works.

This is is related to nsurlsessiond, which is a subroutine used for iCloud. I have found NO fix for this at this time, but Apple engineers are aware of it.

While you can delay iPhoto syncing through iPhoto preference (delay by one day), this is temporary and does not resolve the issue.

Things I have tried:

rebooting, reinstalling 10.10.3 in Safe Mode and Recovery mode, PRAM reset, NVRAM reset, etc.

None of this solved my intermittent wifi on/off randomly issue.

You can confirm this is the issue on your computer using the following:

1) Open Actiivity Monitor (in Applications/Utility folder) click on Network, then type nsurlsessoind in the search box (upper right). If your computer has been on for a while it may show a huge amount of data sent out (uploaded) in both the Sent Bytes filed (usually recycles at 1.2Gb) and below int he Data Sent field.

2) Now turn on your Airport Utility (also in the Applications/Utility folder) and your network will either show green (on) or orange (off). You can force the internet to come back on by going back to Activity Monitor, highlighting nsurlsessiond and force quitting (click X in upper left menu bar) it multiple times (it will keep coming back up but if you do it enough times it will interrupt the upload (graph at the bottom) and wifi will be restored temporarily as shown in Airport Utility allowing to get an email or web page loaded before it bogs back down again.

3) Note however, that even thought the network is OFF data is STILL being sent out (uploaded) as long as your computer is hooked to the internet (wifi or ethernet). Also when the network is out your other internal connected devices (wifi if you are using an Time Capsule or Airport). This is because your network runs through your computer (it is set up last the DHCP host and NAT controller).

4) if you have a Time Capsule, Airport or router you can isolate your DHCP/NAT Mac by turning off wifi and disconnecting ethernet just to that computer. Your Router (Time Capsule/Airport) will restore internet service from your modem to your other devices. But of course your Mac will not be connected to anything now.

I am playing around with restarting iPhoto by opening with the Command/Option keys pressed and rebuilding the database to see if that may have some effect.

Again Apple engineers are aware of this issue, you are not alone. The above work around will allow your other devices to have wifi through your router and you may continue to use your Mac offline.