If you receive the error code 80071392 when you try to sign in to Windows Live Messenger, try these steps.
DE Domains have massive problems at the moment, caused by a general failure at the German domain registry DENIC, maintaining the German addresses.
A new free Google service has been released to the public. Google Public DNS can replace your default servers that resolve Web URLs to IP addresses, and helps to protect your safety. If you want to use it, you must change the DNS settings for your web connection.