Post-upgrade, we’re aware that some users are having problems with Gaussian on some nodes. This is due to a system problem related to forwarding your user login credentials to the compute nodes. We are working on it and will advise the user community when the problem has been solved.
UPDATE: These problems have been resolved. If you experience “Permission Denied” messages when using Gaussian now, please be sure to let us know at firstname.lastname@example.org.