Over that last week or so there has been frequent drops in service shortly after midnight, where the router is unable to connect, this normally takes in the order of hours to full return. From 3rd party websites it often appears people in the same area (North East England) also have the same problem.
Tonight there appears to be a DNS issue, and my router won't resolve hostnames regardless if you dynamic dns or google's dns. I resolved this by setting my adapter's DNS to google's as a temporary fix.
What is causing these issues and how long can we expect them to continue?