I have a Mac desktop with a wireless keyboard and I had to restart the computer but now my keyboard won't reconnect. I unplugged all the other USB chords and turned on the keyboard but it won't connect. I've been waiting for about 3 hours and it won't connect. I don't have another USB keyboard and this is really pissing me off. Please help.
Try replacing the batteries in the keyboard. When the batteries get low the signal strength can become irregular and weak. If your keyboard is working and the batteries are fine then you should see a bluetooth wizard attempting to connect to your keyboard. Select your keyboard in the wizard and it will connect. If it does not show up in the wizard (or if the wizard does not show up at all) just replace the batteries and see if that helps.