We’re aware that there have been issues with Moodle availability over the past 24 hours – Information Services is working to fix this, and it should be back to normal soon. In the meantime, they advise that:
if you happen to ‘land’ on the problem server and get a ‘Page Unavailable’ message displayed on login, close your browser and clear the browser cache and try to log in again. This may take a few attempts to ‘land’on the functioning server.
Apologies for the inconvenience this is causing.