A quick checklistīefore we launch into the full diagnostic procedure, here is a quick checklist of common problems: Note that the problems and solutions below are mostly inapplicable to connecting to your instance's console. It assumes that you have already read and tried to follow the NeCTAR instructions for new users on how to use SSH, and how to launch a NeCTAR instance. The purpose of this document is to help you to diagnose the cause of your SSH access problem, and (where possible) fix it yourself. There are a number of possible causes for SSH issues, each of which requires a different “remedy”. This can happen when the instance has been newly launched, and it can happen at other times. It is not unusual for people to have issues when they attempt to connect to a NeCTAR instance using SSH.