QLowEnergyController Bluetooth software connection abort

[vegtaa]

This is the error:

qt.bluetooth.bluez: void QBluetoothSocketPrivate::_q_readNotify() 8 error: -1 "Software caused connection abort"

What my app does:

1 scan
2 connect
3 get services, and characteristics
4 look for specific characteristic, and change the CCCD to enable notifications
5 print characteristic value when i get notification

My app runs fine for 2 to 3 minutes and then the above error shows up and my app disconnects from bluetooth device.

Things i have tried:
1 changed the bluetooth adapter on laptop...same error, same time frame. so not laptop hardware.
2 If i connect a Nexus 7 to the bluetooth device i dont have any problems. so not external bluetooth device.

Things i would like to know:
1 is this a bug or did i mess something up?
2 best way to reconnect...
do i disconnect and connect again? that seems kind of messy.

[vegtaa]

I was using Ubuntu 14.04 with bluez 5.28 installed and always had this error.

I reinstalled bluez 4.101 and this problem went away....