I was asked the other day by someone at work to have a look at his BT comtrend powerline adapters. The problem with them is that BT supply them in pairs and if you want to use more than the original 2 you need to be able to set them up (for which BT do not supply instructions).

So after a bit of research I found the following post on DigitalSpy. The process goes something like this:

  1. On the back of each device is a label, one of which is a MAC number, which looks like 012345678ABC. Make note of these numbers on each device you wish to set up.
  2. Plug in the devices, and connect them to your router. Log into your router, and find the DHCP option. In here there will be a list of IP addresses associated with a MAC number. For each device you have a MAC number for, make a note of the IP address associated with it (for example
  3. Open your web browser and type into the address bar the first IP address you have noted. This should take you to a login page. The default password is admin (if it asks for a username, it should also be admin by default).
  4. Once into the device, choose the option for change configuration, then choose Mac.
  5. Under this heading make a note of the Network Identifier (I suggest copying it and pasting it into a word or notepad file).
  6. Repeat this process for each device, making sure the Network ID and Encryption Key are identical on all the devices. Once you have applied the setting to all the devices, they should all work on the same network.

Now, I don’t use these devices at home so have only very limited experience with them (I use Netgear instead). Also, bear in mind that the process may vary slightly depending on how old or new the adapters are and which router you’re using, so these aren’t necessarily “step-by-step” instructions. But if you’re confident by all means give it a go. Just don’t blame me if it doesn’t work.

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