With landing page plugin installed, I am unable to update any plugins or wordpress.
Downloading update from http://downloads.wordpress.org/plugin/jetpack.2.1.1.zip…
Download failed. Couldn't resolve host 'downloads.wordpress.org'
I am also unable to view update details.
An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems.
This was tested with a new installation and only with the landing page plugin active.
It doesn't happen when the plugin is deactivated.