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INSUFFICIENT_AUTHENTICATION with Master Control Panel on PC with Dongle

Hi All,

Im planing to use NRf51 as a BT Central mode device and to do some simple things (like Immediate Alert control). First i tried things with dongle and Master control panel on my PC.

I have a problem to successfully bond to one BLE device. Ble device support BT 4.2 and it has bonding mechanism in place. When i press bond in Master control panel im getting:

[12:05:04.4] BondToDevice()

[12:05:04.4] Bond already exists with

05FF005B0200

But in upper area of screen in Device info panel Bonded is saying: False. Most of chars i can read without problem but i cannot write to any of them. When i try to write im getting:

[11:58:25.7] Could not update handle 0x0015 with new value. Error code: INSUFFICIENT_AUTHENTICATION

In Options->Security i tried: No keyboard or display/Keyboard only as the device has display just one button for enable bonding. Same result with any option.

If i use lightblue app on iOS i can do successful write and get the alarm to happen.

Do you have any ideas? Thanks.

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