If there is a proxy configured on your environment you may get this error when trying to activate the License: ActivationFailed: The remote name could not be resolved

Solution

To fix the issue, you can specify the proxy settings in the web.config. If your proxy requires authentication, you can share the access with your Application Pool account and add the line below to the configuration:

  <system.net>
    <defaultProxy useDefaultCredentials="true">
      <proxy proxyaddress="proxyAddress" usesystemdefault="True"/>
    </defaultProxy>
  </system.net>

For more information, you may visit stackoverflow.