OSX Yosemite Wifi issues

Hi, I am still (after Update 10.10.1) having problems with Wifi, Bluetooth, Keychain, Handoff never worked, I tried to connect my iPhone (5s) with my MacBook Pro (2013) – it says, "not supported device", it is sooo annoying and disappointing.

Stil the same S**T.

One month later, I'm starting to think Apple laught at us.

Or they are completely lost.

imac27,

every sleep or shut down, needs a :

click on wifi icon

open network preferences

assist me

diagnostics

continue

continue

always allow (in network diagnostics want to acces key... window pop-up)

... you must look how and witch account they are connected to... if it´s your E-mail/s or Phone numer, by then mean so your keychain, handoff will work. Because if they are connected differently.... in all your OS X/iOS devices then it will have hard to sync, the connection must be same... same e-mail or phone number.. and not.. "100 of different connection to your Apple-ID".

Anyhow that what solved my problem with Handoff, in my older computers to my iOS devices.. and also my iOS devices had different connection types as priority one, two, three and so on.

And also started a "new-life" with my latest Apple computer... fresh install with everything (-7 years ago last time, or 4 OS X ago) :-)

I just did the update on my iMac 27" and all I get is silver screen.

Was having wi-fi issues, but now can't even see anything. Why can't they get this right?

Restoring from time machine. VERY DISAPPOINTED!

My WI FI worked fine at home (Airport router) but failed at my University office. I just tried this and it works for me:

System Preferences > Network > Advanced: Click the checkbox next to “Require administrator authorization to: Change networks.”

Click OK. Click Apply.

I have found success in changing up the DHCP IP allocation of my home's router - changed from 192.168.x.x to 10.10.x.x. I noticed that when I was connected to my home's network, there were several IP addresses that were being "remembered" from my work's router. These addresses were on a different subnet and my theory is that the my router was having a hard time figuring out what to do with these addresses.

I was able to track down the issue by looking at my home's router "Attached devices" and noticed that there were some 192.168.76.x addresses (given to my iPhone and MBP at work) when my home router only allocates 192.168.1.x addresses.

Just my working theory and this may help some people track down the issue along the way.

Upgraded to Yosemite 10.10.1 (14B25). It did not fix the (seemingly) random dropping of wifi. Very disappointing. Ran an old ethernet cable across my house. My Macbook Pro is now just a tethered desktop. 😠

I have the same problem. After reseting everything and after a full install nothing changed.

I have tried all settings, and still had the WIFI drop problem.

Now it looks, the following made my WIFI nearly good again. (I just tried lots of settings, without any technical background)

sudo sysctl -w net.link.ether.inet.max_age=1

If I want to use SSH it still said broken pipe, but I can use my MacBookAir.

I'm pretty sure this whole issue is around DNS and with everyone having some sort of success by changing configs and rebooting routers all they are really doing is causing cache's to be flushed but the issue still returns for many so it's got to be a bug in the way Yosemite is resolving DNS.

my problem was solved by setting IPv6 to manual over a week ago and i haven't had a single issue since but as others have tried this without success they may have done things differently.

I noticed when running nettop in terminal that an established IPv6 was causing connectivity to hang and was also the cause of the slow shutdowns and since setting IPv6 to manual or local on all my macs i haven't seen the established IPv6 connection since so have no idea what it was as i don't recall the port it was trying to use at the time

The only other thing i did was to edit /etc/hosts which basically causes discoveryd to flush the hosts cache every time you boot your machine, so maybe this cache flushing helps, don't really know but these were the only things i did to get LAN and WIFI stable.

This is the event you will see if you search for discoveryd in Console after touching or editing your hosts file

Basic DNSResolver etc/hosts file changed: Event 0x0 Flushed /etc/hosts cache

Anyways all I'm really saying is, i believe it is a DNS bug that can't be resolved properly with just config changes.

Also we shouldn't have to do anything to routers as they all follow a standard

I have two Macbooks, a 15" from 2012 and a 13" from 2013.... the WiFi issue is with the older one.. Hardware can only be band-aided so much by software.... Thinking of selling the lemon from 2012 as the issue has been place for almost 2 years.

OK, Round-Robin DNS is where a DNS resolution will provide several possible IP addresses, and rotate them round - this means that the load will be balanced across several servers.

What I have noticed when the WiFi drops, sometimes Layer 3 ICMP (Ping) will get through but for a very short while, while Layer 7 (Application Layer) will be blocked.

Have a read through this link for more info on the OSI model.

http://en.wikipedia.org/wiki/OSI_model

And let's see if lots of people are having issues with WiFi dropping --for years.... and no new code makes a difference and other computers on their WiFi networks do not have ANY issues.. there is BUT one reason --APPLE HARDWARE defect.... Since Apple Software cannot fix it.... Q.E.D.

I did look a while back for wifi dongles but they all seem to use the MAC drivers and as I had the same problem on the wired LAN i figured it must be in the OS. Just a crazy though but after reading through that link you supplied but has anyone tried changing their duplex from auto?

Interesting as I've not had any issues with the cable.

That's always been my resolution to the problem.

If there are issues with the cable, then it could quite possibly be something related to OS X's inbuilt firewall.

uzi73mm wrote:

And let's see if lots of people are having issues with WiFi dropping --for years.... and no new code makes a difference and other computers on their WiFi networks do not have ANY issues.. there is BUT one reason --APPLE HARDWARE defect.... Since Apple Software cannot fix it.... Q.E.D.

Look - this is a fact

1) Network Failures All Over The Glove == Yosemite

2) No Network Failures All Over The Glove == Mavericks

3) Booting into Mavericks on This Here Computer == No Network Failures.

4) Booting into Yosemite on This Here Computer == Network Failures.

Mavericks == Software

Yosemite == Software

If one Works flawlessly and the other does not, Hardware == NOT KAPUTT

I know that frustration is reaching peaks and rightly so... But please keep it FACTUAL