Columbia University Information Technology

Service Alerts


Resolved Service Alerts

Resolved Service Alerts

  • Email
    01/29/2015 - 11:55am to 01/29/2015 - 04:00pm

    Incoming email service was interrupted for about 2 minutes around 11:13 this morning. Outside systems would queue and re-try, and within about a half hour delayed mail would be delivered.

    This was a controlled change to use the new incoming servers 100%. The loads unexpectedly went too high and therefore we backed off the change immediately. It takes about 60 seconds for remote servers to see that we changed back.

  • Email - Exchange
    01/29/2015 - 10:27am to 02/03/2015 - 04:28pm

    On Friday, 01/30, at approximately 4 am, the SSL certificates on the CUIT Exchange servers will be updated.

    No service interruption is anticipated, but users may be prompted to enter credentials for existing sessions.

    For questions about this event, please contact the CUIT Helpdesk at, or call 212-854-1919.

    To see all active and future Service Alerts, please visit


  • Network - Wireless
    01/29/2015 - 06:00am to 01/29/2015 - 06:30am

    UPDATE: The Wireless Network maintenance has been completed. 

    On January 29th at 6am, CUIT will be performing routine maintenance on the Wireless Network. This scheduled maintenance is expected to be completed on time. No service interruption is anticipated, but users may need to re-authenticate to the Wireless Network during this maintenance window.

    For questions about this event or any issues after the maintenance window, please contact the CUIT Helpdesk at, or call 212-854-1919.

    To see all active and future Service Alerts, please visit


  • Network - Ethernet and Wireless
    01/28/2015 - 11:05pm to 01/29/2015 - 12:23am

    The outage was resolved at 12:20 a.m. 


    Begining at 11:00 p.m., network service on the 6th floor of CEPSR became partially unavailable due to an issue with one of the switches that serves the floor. CUIT administrators have been notified and are currently working to resolve the issue.

    CUIT does not have an estimated uptime as of yet as the cause of the problem is still being investigated. We apologize for this service interruption.

    An update will be posted as soon as we have more information.


    For a complete list of recent and upcoming scheduled service changes, please visit

  • Telephony - NetPhone
    01/28/2015 - 09:00pm to 01/28/2015 - 10:00pm
    Update: Maintenance was successfully completed without incident. 
    CUIT is performing necessary maintenance on the VoIP/NetPhone voice, voicemail, and conferencing servers on Wednesday, January 28th, 2015 between 9:00 PM and 10:00PM. 

    During this maintenance window, there may be a NetPhone voicemail and conferencing system outage lasting approximately up to 15 minutes.

    However, this work should not impact the ability to make and receive phone calls, but forwarding of calls may be disrupted during this time period.  

    In addition, Netphone users that are configured for BLA might notice their indicator light not appear. However,the indicator light should re-appear within an hour of the change.

    CUIT apologizes for any inconvenience this may cause, but this action is necessary to ensure a more reliable service.   

    If clients continue to experience issues after the service-interruption hours, please contact the CUIT Helpdesk at:  

    Phone:   212-854-1919