We are experiencing a problem with the DNS (domain name services) outside the Argonne network.  As a result, users may have difficulty establishing new connections to all ALCF resources and services, including https://alcf.anl.gov, https://my.alcf.anl.gov, from outside the Argonne network.

Queued and currently running jobs on all ALCF systems should continue to run as intended.

We are in the process of diagnosing and debugging the issue and will send a message once connectivity is restored. We apologize for the inconvenience.

Please contact support@alcf.anl.gov  with any questions or concerns.