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John Pellman, 08/19/2025 10:58 AM


FAQ

I'm unable to link my Globus account to my NCCAT/MEMC account from the CUIMC Campus

The typical advice we give to Columbia affiliates if they encounter an error with Globus account linking is to first switch to a different network (e.g., a WiFi hotspot). This is because our Globus endpoint domain (globus3.5540bd.75bc.data.globus.org) apparently cannot be used on certain CUIMC networks. Specifically, our Globus domain cannot be resolved (i.e., its domain name cannot be mapped to an IP address). The domain globus3.5540bd.75bc.data.globus.org is managed by Globus (not us) and in turn, uses Amazon as a domain name provider. Ultimately this means that there is a problem with CUIMC IT's domain name infrastructure where Amazon domains cannot be reached; from the outside it's unclear if this an actual issue or just a matter of policy related to the protection of patient data / PHI.

If you keep encountering this issue, our advice would be to contact CUIMC IT and/or Globus support.

How do I unlink my MEMC account and link my NCCAT account (and vice versa)?

If you currently have a MEMC account linked to your Globus account, you may not be able to access your NCCAT directory (or vice versa). If this is the case, you should use the following instructions to unlink your MEMC account and link to your NCCAT account:

1. Click on Manage Identities on the Settings page in the Globus web UI.
2. Then on the next page click on the trash can icon in the same row as <username>@globus3.5540bd.75bc.data.globus.org and then click on Unlink Identity.
3. Next time you are prompted to log in with your credentials, use your NCCAT account and its associated password.

Updated by John Pellman 1 day ago · 7 revisions