Iphone 6 + Macbook 2013 Bluetooth not linking up

Question

I have them on the same network, they're both wireless.
I have tried to pair them but it fails every time, it pairs successfully then disconnects immediately after being paired and it will not connect again unless I forget device but it goes through the same loop as above and never stays connected to each other.
After it disconnects I have tried double clicking my iPhone 6 listing in my Macbook Bluetooth settings and the following message pops up: Network is Disabled. Make sure network access is enabled'.
In my iPhone 6 Bluetooth settings it shows two listings of my Macbook Pro (only one of those can I forget the other is always there without an option to forget it).
When I click on the paired listing or the non paired option I get the following message: Connection Unsuccessful Make sure "Macbook Pro" Is turned on and in range.
Airplay works fine.
I tried resetting network settings, reboot my modem, router, clearest all my settings in my phone & nothing gets these two to work together correctly.
During this message I did get them to connect but it's never permanent. It works for a few moments then disconnects and I have to try over and over in my phone to connect just to get them to work for a few seconds more.

Answer 1

Just noticed as well, after about 10 minutes, the volume jumps back down again! There is no change I have made in the audio settings on either the phone or speaker and the volume bar on either doesn't move when this happens.