Q: Bluetooth problem with OSX Yosemite: Magic Mouse and Keyboard

I just finally upgraded to Yosemite on my MBPro 15" Retina and ran into this issue with my magic trackpad. I did some testing and found this to be true in my case:

1. This issue only presents itself when Safari is running. No Safari, no issues.
2. If Safari is running, I can make the issue disappear for 1-3 minutes at a time by launching the Bluetooth Preference Pane and giving it focus. Then I go back to what I am doing until the issue rears its head again and then I give the BT PP focus again (i just leave it running).

I can reproduce both of these across reboots.

I have to assume this is a handoff related issue

Needless to say, #2 is annoying so I just don't run Safari.

Hope this helps people out there (are you listening Apple?), and please let me know if it does work for you too.

Very interesting. I do use Safari and have enabled Handoff. I'm going to have to experiment.

Hey, are you the guys with the awesome memory sticks?

The worst thing is periodically when my new black Mac Pro wakes up to the unlock or login screen and my Apple Bluetooth keyboard CANNOT enter the password no matter how many times I try! It's either disconnected or stuck on key-repeat. And you can't toggle WiFi or anything else from that screen.

I then have no choice but to hot-unplug some USB device and go find a USB keyboard from another Mac to plug in and enter my password. Or force-shutdown and maybe lose work.

Anyway, it just occured to me: I don't recall if anyone here tested 2.4GHz vs. 5GHz WiFi. (They probably did, but I skimmed past it.) Bluetooth is 2.4, and so is most WiFi, but if all your devices (and your base station) support 802.11n, you can try 5GHz. I'm just about to do that! Hopefully I won't find any of my machines can't connect over 5GHz. I'll post my findings after a while.

The weird thing is, my Bluetooth troubles simply vanished last week. For about 7 days, Yosemite WiFi and Bluetooth got along great! Then the problem returned.

I'm on 5 GHz and still see the Magic Mouse problems

Well I kind of did that - I "disabled" all 2.4 GHz Wifi by assigning it a unique SSID (and eventually not even broadcasting it) so that no devices can connect. No 2.4 GHz devices that I am aware of are now connected. Have replaced all old IPhones and IPads by recent ones.

Did all the rest, too (see previous posts I made about this).

Problem persists.

Never have my hopes been dashed so quickly!

One tiny silver lining: if 5GHz affects 2.4GHz WiFi, that's one more clue to suggest it's not any kind of hardware interference flaw. (Ditto for the fact that laptops and Mac Pros alike have similar issues, and that is seems to be new or worse with Yosemite.) In which case, it's software-fixable by Apple.

As I said earlier in the discussion, that's likely the case. I remember I did an update on 10.9 late summer and at that point experienced these problems already. I had attributed them to a new and cheap USB 3.0 hub I had bought at the same time I did that, but they persisted without that, too. So from my point of view, this indicates that in some update, Apple already anticipated changes around the Bluetooth stack to happen in Yosemite, and rolled them out as part of the update procedure.

I have no other reports from people with similar experiences, so this may be a coincidence - yet the symptoms were exactly the same.

I find 10.10.2 1st build is sometimes has the same bug but rare.

Let's see about the new build of 10.10.2. Currently updating. Will report back.

So far is so good. Switching 2 magicmouse, office and home BT connection has been faster.

Wifi 'handshaking' also faster.

I think Apple has finally nailed it guys.

But let me test it for a week

1 day testing beta 10.10.2 2nd release and no problem until now.

Too bad the feedback assistant just reports problems, it should have a tool to report when a problem was solved.

SO I see a lot of posts about the MOUSE, but nothing about the keyboard.

I have serious lag when typing on my keyboard, its very delayed.

Ok maybe not serious, but enough to hurt my typing speed and accuracy.

Is anyone else having an issue with the keyboard and typing?

Thanks greatly for the update. Appreciate it

Not me. Mouse is unusable, but only seen one, solitary problem with the wireless keyboard, that at start up.

I'm trying to use a Bluetooth speaker with my Macbook Pro Mid 2012 with all Yosemite updates but it is impossible! Sound keeps cutting out from 3 to 3 seconds.

I have tried almost all the suggestions to solve the problem but no success.

It's time to see something from apple, this is unacceptable for the price I payed for my computer...