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Bluetooth Smart (4.0) Troubleshooting

The first thing is to make sure that your Bluetooth Smart devices aren't currently paired to any other devices or applications. Bluetooth devices can only pair to one receiver at a time so if they're already paired somewhere else, they'll be invisible to TrainerRoad.  


If you're able to connect your device, but experiencing drop-outs, these tips can help:

  • Check your router as high traffic can interfere with the connection. Some routers perform automatic backups that can cause issues as well.
  • Try turning Wi-Fi off altogether to improve connection.
  • Turn off other Bluetooth connections such as keyboards, headsets, etc. Too many connections can cause drop-outs.
  • Replace the batteries in the device.
  • Make sure the devices aren't too far away from the dongle.
  • Make sure that you don't have more than one power meter or smart trainer paired. Bluetooth Smart is only able to pair to one power meter or smart trainer at a time.

PC Bluetooth Troubleshooting


Make sure you have installed the necessary USB drivers. Download Bluetooth Smart drivers here.

Also, you must have the BLED112 USB dongle specifically (even with native BT 4.0 support). No other Bluetooth dongle will work on Windows. Note: the BLED112 will not work with Mac computers.


Having trouble with the BLED112?

If you're running into problems with the BLED 112, even after installing the drivers, try the following steps:

  1. Make sure the BLED is plugged into your computer's USB port. Open the Device Manager.
  2. Next click on "Ports (COM & LPT)" You should now see your BLED under the name of 'Bluegiga Bluetooth Low Energy' with a COM number.
  3. Right click on the BLED and click 'Update Driver Software'.
  4. Click 'Browse my computer for driver software', and locate the TrainerRoad USB Drivers you downloaded from the link above. This is typically located in "C:\Program Files\TrainerRoad USBDrivers" or \Program Files (x86)\ if you're on a 64bit operating system.
  5. Start TrainerRoad and click 'Search for Bluetooth 4.0' in the Devices tab.

If that doesn't work, and you still don't see pairing options for Bluetooth, try plugging the BLED-112 into a different USB port and trying again.

Screenshot #1

Mac/iOS Bluetooth Troubleshooting


Bluetooth 4.0 comes native in most Mac desktops and laptops since 2011 including iPhones and iPads. This means that you do not need a Bluetooth dongle to pair Bluetooth Smart devices to TrainerRoad! Here is a more specific list:

  • MacBook Air (mid 2011+)
  • Mac Mini (late 2011+)
  • MacBook Pro (mid 2012+)
  • iMac (early 2013+)
  • iPhone 4s+
  • iPad Mini, Air, Air 2


Have an older Mac without native Bluetooth 4.0?

The IOGEAR or ORICO dongles can work for Macs that don't come with native BT 4.0. Unfortunately, those dongles don't seem to work consistently with older Macs - especially if the user is running Mavericks. This is not a recommended approach, but if you have the dongles you can give it a try.

For OSX 10.7 and earlier, you may be able to get the dongle working by following this article: Using unsupported Bluetooth 4.0 USB dongle with OS X.

For OSX 10.9 or newer, try following these steps:

  1. If you have a bluetooth mouse, you need to have a wired mouse handy. A wired keyboard is nice, but not strictly necessary.
  2. Get the "Hardware IO Tools for Xcode" from here: (Apple login required) This includes the "Bluetooth Explorer" utility.
  3. Launch Bluetooth Explorer. A top menu will only appear. Go to Tools => HCI Controller Selector. This setting allows you to change what bluetooth controller the system will use as it's primary.
  4. Before swapping it, plug in your wired mouse and un-pair all bluetooth devices on the system in the system preferences (100% necessary or you will not be able to re-pair them with the new controller!). Once that's done, change it to your new controller. The utility says that this will not stick with a restart, but I've found that it actually does. It will ask for your password. If you are now keyboard-less, pull up the virtual keyboard and enter it.
  5. The new controller is active and you can now repair your devices. This took me a few tries, for whatever reason they didn't pair right away, but they did within 5 minutes or so.
  6. Go to TrainerRoad and search for the BT controller.


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