To add or re-add your Hub to your account, follow these steps:

1. Log in to your account on myharmony.com.

2. Connect your Harmony Ultimate remote to your computer using the USB cable.

3. Select your Harmony Ultimate remote from the Welcome screen.

4. Click Sync in the upper-right corner.

5. On the Sync Your Harmony Ultimate page, click "Having trouble?  Recover your remote and hub".

6. Click Next.

7. Follow the instructions to set up your WiFi network.

8. Press Done to complete the process.

Follow the same steps to add or re-add your remote to your account.  You won't be prompted to set up your Wifi network if you're only adding the remote.