Q: OSX Yosemite Wifi issues

I also ran Repair Disk, it found problems, told me it could not repair them, and it also told me to format the drive, and restore from a backup. This is getting nuts. I have not yet tried this. Frankly, I am reluctant.  

I just ran Disk Utility to check what I would find and also found a strange series of errors on the check.  There were no errors before Yosemite.  And I have an SSD drive that is about 30 days old (factory installed).

Fresh install didnt fix mine.

Some dude on Reddit claimed this worked:

System Preferences > Network > Gear Icon > Set Service Order (Make Sure Wi-Fi is at the top of the list)

I am highly skeptical, but am trying it. Apologies if this suggestion was already made in this ever-growing thread. Here's the reddit link:

http://www.reddit.com/r/applehelp/comments/2josni/terrible_wifi_connection_issue s_on_yosemite/

FYI- Resetting the PRAM requires you press Option, Command (⌘), P, and R.

Your solution is working for me so far!

FWIW, I reset the PRAM, moved my network to the top of the list and went to Keychain access - System. Find your wireless network - double click. There are two tabs, Attributes & Access Control. Go into the Access Control and check "allow all applications to access this item".

My computer has been working well now for several hours so far.

I hope it works for more people and works long term for me.

Just an FYI update, for the Bluetooth issue, I reset my MBP PRAM [hold keys 'option', 'command', 'P' and 'R' at restart] which help it & now all bluetooth devices are working . Just left is the wifi issue .

I am having the same issue when using my AirPort at home.  I will have to see if the same issue persists when I am at work.  One thing that I have just changed that appears to be working is to do the following steps:

(1) go into network preferences

(2) Select Wi-Fi on the left side

(3) Click on advanced

(4) Click on proxies

(5) Unselect all proxies (mine was set to auto proxy)

(5) Click ok

(6) Click on apply

I was loosing my connection every 30 seconds and would have to turn off Wi-Fi and then turn it back on in order to have internet connectivity.  After turning off the proxy setting, I have been up now for an hour.  I hope that this was the issue.

*** Update***  It has been almost 24 hours now and I have not had any issues with my Wi-Fi connection.

Ah, yes, thanks for the reminder about Option. I hadn't tried to reset the PRAM in many years.

I was reluctant as well. For what it's worth, I ran Disk Utility again after the restore from a backup, and it did not find any problems at that point. I still find it hard to believe that the WiFi and Bluetooth problems were caused by file system errors, but I don't know what else to think.

Hey everyone, found my fix as to why it was dropping every 2-4 minutes. I even did a reinstall. And by my I mean my I.T. buddy. Anyway my router was kicking out a double signal and yo,yo,yosemite could not make up its mind and stick with a decision. Here is my non I.T. memory, it was kicking out a WEP/WPA2 (something like that) signal.  He stopped the double signal and boom baby I have wifi back.

Those other things discussed here, I tried them - did not work. System preferences and move mine to the top, delete unused or seldom used, keychain and do something i forgot - did it all.

Good luck,

I tried most of the solutions posted on the thread and they provided temporary fixes.  However the one with the greatest impact was turning off the Handoff feature (System Preferences > General) as mentioned by another user on the thread.  It took about 10-20 minutes before it kicked in and fixed all Wifi speed and connectivity issues.  Turning it back on at any point resumes all the encountered problems.

I reinstalled yosemite and it works for me! (after 2 days of struggling) of course you will need ethernet cable to downloaded again.

The problem with my machine was the .plists  (see image)  Finder>file>find, type .plist in search. Dump the files, do a shutdown and boot up (I also reset the PRAM also) for the heck of it.  Probably wouldn't hurt to repair permissio

What a mess huh. There were 4 Bluetooth plists, duplicates and triples of others. Obviously, this is going to cause preferential conflicts when running an app Since I couldn't determine which should, or could be saved,  I dumped them all. That means I had to go and reset my important prefs, but it could take APPLE

weeks to resolve this, so I guess it's worth the hassle.  THANKS APPLE!!!!!

P.S. While I'm at it, I want my Safari Reset Button back, and put the Clear Cache in there while you're at it. GRRRRRRR!!