I have macair bought 2009. Bluetooth connect with mouse and keypad not working. It used to work. Batteries are good. Green light flashes on each device, but no connection. Any suggestions to help me here? Thanks.

Dear Community,
I have a macbook air bought new in 2009. Since 2011 I only use it occasionally as I  now mainly use my iMac. The mouse and keyboard that came with the macbook air used to work fine with bluetooth connection to the macbookair, but now they don't. The batteries are good. The green light flashes showing it is seeking other bluetooth device to connect to. But they wont connect to my macbookair. What could the problem be? Your help would be much appreciated.

Thanks for that. Yes I checked that already and BT enabled. Yes, external keyboard. But I just moved the computer to different part of room and bingo the devices paired and connected. So problem now solved. Thanks for offering your help.

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