Bluetooth not available on Mac

The following workaround is working for me:

System Preference -> General -> Deselect "Allow Handoff between this Mac and your iCloud services".

Then restart compute.

This has been a frustrating issue for me too. There seems to be a bunch of workarounds to make it work for a while... so here is another very quick one that works for me: System settings/Advanced/uncheck "Allow Bluetooth unities to wake up computer"

Yes! This worked for me, too.

System Preference -> General -> Deselect "Allow Handoff between this Mac and your iCloud services".

Then restart computer.

I had the same problem and resetting the plist and leaving the MBP shut down for 5 minutes, as recommended in other posts, fixed it for me. Thanks for the help, everyone.

Make sure the bluetooth device is on. Open bluetooth settings in system preferences, right click on the device you want to connect to, then hit the connect button. It somehow forced bluetooth to work for me. Try it a few times and it might work. Hope this helps

Anyone tried to install Mojave yet? Maybe that will solve the issue once for all.

So I ended pluging in my bluetooth keyboard to the iMac using the lighting cable. That seems to make both keyboard and Magic Mouse responsive again and while I leave the keyboard connected by cable the bluetooth issue doesn't occur again (neither on the bluetooth mouse).

I guess the issue has to do with two peripherals fighting for the bluetooth connection somehow.

Just an update for everyone.

For months I had been thinking it's MPB 13" (early-2015)'s bluetooth module that causes the problem. But lately I got another brand new MBP 13" (early-2015) (purchased around the same time as the former one but kept in the company's storage) which also had the similar problem. So I knew right away that the issue isn't specific to my laptop.

After reading this thread, I filed a bug report to Apple. After a week, I got a response from Apple's engineer that my bug report (44391800) is considered duplicate with another bug report (39795253) hence they decided to close mine.

Since I'm not the owner of the bug report (39795253), I can't see either the status nor what they have been doing so far with it. But at least it means they do know this bug does exist.

Keep our finger crossed that Mojave has already getting rid of this bug.

I have been running Mojave for the last week and this issue is still there. Incredibly annoying. This should be one of the easiest things to fix... ah... and it is not hardware. If i want to make sure the bluetooth works, all i have to do is make sure the mac doesn't go to sleep... so i get an album in iTunes in loop and lower the volume to the minimum.

That clearly states that is something to do with software, and the status the bluetooth is left when the system goes to sleep.

Frustrating!

I have this same problem 10.13.1 on mid 2012 Macbook Pro. Tried deleting the plist and now just tried:

http://osxdaily.com/2015/12/15/reset-bluetooth-hardware-module-mac-osx/

Will see if either help.

I have the same problem here on macos high sierra 10.13.1 (Macbook pro, early 2015). This problem happens from time to time even I reset bluetooth module, removed 'com.apple.Bluetooth.plist' from /Library/Preferences, resetting the SMC (again) and NVRAM. When I do the reset and reboot laptop, the bluetooth is working, but when I move my laptop from home to office and plugin external monitor, the bluetooth will be not available again. The bluetooth icon is displayed as "Bluetooth: not available". Reboot can fix this issue, but it's very annoying, I need reboot the laptop for every time when bluetooth is not working. Now I need reboot my laptop twice a day to make the bluetooth work, previously I just need reboot my laptop every month and there is another reason I need reboot, not related to this one.

When you always use external monitor with apple wireless keyboard/mouse, you will feel the pain, it's not working!!! Keyboard can't invoke laptop, mouse doesn't work! You have to open laptop and reboot for every time!!

Apple, please fix this issue ASAP!

Totally frustrating!!!! 😟

I have already tried

SMC

NVRAM

Deleting .plist file.

pufff, nothing seems to work...

In other threads I read about to install again the latest update of 10.13.2, I'm going to do it, and share if becomes success.

I have this same issue. I have tried resetting SMC and NVRAM. I have removed the .plist file and the problem seems to be fixed. I will update if it solves the problem permanently or not. Anyhow, Apple need to quickly come up with a fix here. Its suffering hundreds of people and frankly this is not a thing that suits a company like Apple!

This is the exact same problem I'm having. It started when I upgraded to 10.13.1, and it's still happening now (I've since upgraded to 10.13.3). The constant reboots whenever I swap into my Henge Dock (external monitor, usb hub, etc.) is really disruptive. I disabled Handoff when it first started happening - that appeared to fix the problem, but it's started happening again after the 10.13.3 upgrade. 😟

Apple keeps on saying it's a hardware issue! I don't want to pay money to get it looked at. I literally have tried everything. I sent Apple this discussion over the support chat. I literally think it has to do with macOS High Sierra. Cause ever since the new update I've been having this problem.