Resolved - CAEN Service Status

This page provides information on previously resolved CAEN service outages. Notifications of current and upcoming service downtimes are posted at CAEN Service Status, and via Twitter Feed UMcaenstatus on Twitter.

Information about previous campus-wide service outages are also available from the ITS Service Status page.



Resolved: Beyster, Dow, EECS, G.G. Brown Wi-Fi Maintenance - Thursday, March 23

posted Mar 22, 2017, 5:51 AM by Lois Miller   [ updated Mar 24, 2017, 4:35 AM by Jamie Schrader ]

ITS will be performing maintenance on the wireless networks in the Beyster, Dow, EECS and GG Brown buildings on Thursday, March 23rd, from 12:00 to 1:00 a.m. During this time there may be brief outages in connectivity. Further information is available on the ITS Service Status Page.

Resolved: Lay Auto Lab Wi-Fi Maintenance - Saturday, March 18

posted Mar 13, 2017, 8:52 AM by Jamie Schrader   [ updated Mar 19, 2017, 7:40 AM ]

ITS will be performing maintenance on the hardware that supports Wi-Fi in the Lay Auto Lab on Saturday, March 18 from 6:00 to 10:00 a.m. During this time, Wi-Fi access may be interrupted. Further information is available on the ITS Service Status page.

Resolved: Campus Power Outages/Surges - Wednesday, March 8

posted Mar 8, 2017, 10:01 AM by Jamie Schrader   [ updated Mar 8, 2017, 9:47 PM ]

The Ann Arbor campus has been experiencing many power outages & surges from high winds in the area. Outages are expected to continue throughout the day. These have impacted access to campus wired and wireless networks, and have also affected CAEN equipment in labs and classrooms, including lecture recordings.

Further information on these outages is available on the ITS Service Status page, and the DTE Outage Map.

Resolved: ERB Network Maintenance - Thursday, March 9

posted Mar 3, 2017, 9:07 AM by Jamie Schrader   [ updated Mar 9, 2017, 8:37 AM ]

On Thursday, March 9 from 4:00 to 7:00 a.m., ITS will be performing maintenance on the ERB network hardware. During this time, users will experience network outages on both wired and wireless networks. Further information on this maintenance is available on the ITS Service Status page.

Resolved: WordPress Web Publishing Sites - Thursday, March 2

posted Mar 2, 2017, 11:23 AM by Jamie Schrader   [ updated Mar 2, 2017, 12:21 PM ]

Due to a configuration error, some sites that are part of CAEN's WordPress web publishing service may be unavailable. CAEN staff are working with the vendor to resolve the problem as soon as possible.

Resolved: School of Information North Electrical Outage - Saturday, March 4

posted Feb 27, 2017, 8:00 AM by Jamie Schrader   [ updated Mar 5, 2017, 3:15 PM ]

On Saturday, March 4 from 6:30 a.m. to 5:00 p.m., the School of Information North building will suffer hour-long electrical outages while maintenance is performed. Network connectivity may also be lost during this time. Further information on this maintenance is available on the ITS Service Status page.

Resolved: School of Information North Electrical Outage - Wednesday, March 1

posted Feb 21, 2017, 5:58 AM by Jamie Schrader   [ updated Mar 1, 2017, 9:02 PM ]

On Wednesday, March 1 from 6:30 a.m. to 5:00 p.m., the School of Information North building will suffer hour-long electrical outages while maintenance is performed. Network connectivity may also be lost during this time. Further information on this maintenance is available on the ITS Service Status page.

Resolved: Pierpont Commons, Duderstadt Center, & NA&ME Network Upgrades - March 1 to March 3

posted Feb 21, 2017, 5:54 AM by Jamie Schrader   [ updated Mar 3, 2017, 5:48 AM ]

The following network hardware upgrades will take place from Wednesday, March 1 to Friday, March 3:

  • 3/1/17 from 6:00 to 9:00 a.m.: Pierpont Commons CAEN Lab network switch upgrade
  • 3/2/17 from 6:00 to 8:00 a.m.: Duderstadt Center building uplinks upgraded to two 20gig connections
  • 3/3/17 from 7:00 to 7:30 a.m.: Duderstadt Center building uplinks upgraded to two 20gig connections
  • 3/3/17 from 6:00 to 9:00 a.m.: NA&ME Computational Lab room 224 network switch upgrade

Network connectivity may be unavailable in these areas during the upgrade process.

Resolved: Campus Data Center Power Outage - Many CAEN Services Down - 2/18/2017

posted Feb 18, 2017, 8:36 AM by Dan Maletta   [ updated Feb 20, 2017, 4:33 AM by Jamie Schrader ]

UPDATE: 10:00 a.m., Sunday, 2/19 - All CAEN services that were down because of the power outage yesterday are now functioning again.


UPDATE: 4:00 p.m., Saturday, 2/18 - CAEN Windows lab machines are back up and operational.  Remote Desktops and Linux systems are still experiencing problems.


A campus data center power outage occurred at 9:41 a.m. this morning. Power has been restored, but may CAEN and campus IT services are unavailable. CAEN staff are onsite working to restore services.

Services that may be impacted include:

  • Remote access to CAEN Windows computers via midesktop.umich.edu
  • Access to CAEN software library on both Windows and Linux
  • CAEN Windows and Linux home directories

Updates to follow as services are restored. Information about other campus IT services affect by this outage are available at the ITS Service Status page.

Resolved: CLSE Server Maintenance - Thursday, March 16

posted Feb 15, 2017, 10:13 AM by Jamie Schrader   [ updated Mar 16, 2017, 6:10 AM ]

On Thursday, March 16 between 5:00 and 8:30 a.m., maintenance has been scheduled for servers that support the CAEN Lab Software Environment (CLSE). This maintenance is intended to apply security patches, correcting recent operating system and software application vulnerabilities.

The following services may experience an outage during the above maintenance timeframe:

  • Linux Login Service (accessed as login.engin.umich.edu, login-course.engin.umich.edu, oncampus-course.engin.umich.edu, or restricted-course.engin.umich.edu), also known as the "VNC" servers
  • Software applications available on CLSE for Windows computers, including via the Windows Remote Desktop Service

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