We're changing the way RCE users connect to the RCE. Following the changeover in late May, you'll need to connect to Harvard's VPN in order to use the RCE, whether you are connecting via NoMachine (NX), or SFTP or SSH. In order to connect to VPN, you'll need to claim your HarvardKey and set up two-factor authentication (the DUO app is recommended, but you can also use SMS or a phone call for authentication).
Is there an active outage? All outages are posted to the outage notifier (the widget in the top right of your RCE session), the RCE upcoming events, and to our outages mailing list in advance of planned maintenance windows. You can also check the HMDC status page. For more information, visit our RCE outages page.
Are you over quota? If your home directory goes over 2GB, you won't be able to log in to a RCE desktop. Log in via SSH to clean up your home directory. See, How Do I Check My Quota? for more information.