It's an HTTP request step that will log into a site via a SSL cert and send a file. The site itself is in an isolated environment through some tunnels to a VPN. I can access and use this resource from the browser when this is occurring through the same port forwarding and tunnels, so the network is definitely still reachable :\ it's certainly an odd thing that occurs. I should note that when this error happens, it happens for days, but the network configuration is identical each time via a saved shell script, so it should theoretically be the same each time.