If you purchased an add-on subscription from Comcast Xfinity, you will need to use your Xfinity box or Xfinity's apps to access HISTORY Vault.
Subscriptions purchased via a partner service cannot be used to log in to the HISTORY Vault website or apps. We will not have your subscription information on file. If you would like to be able to stream via our website or apps, you would need to initiate a subscription via the HISTORY Vault website.
You may be able to watch online using the Xfinity Stream portal: https://www.xfinity.com/support/articles/getting-started-xfinity-tv-website We recommend you reach out to Comcast for specific guidance on how to stream on different devices.