Notices

Information for System Failure

2020

June 26
Tokyo Tech Portal
  • Date of system failure occurred: 08:30 - 10:00, June 26, 2020

We recognized that it was hardly to connect to both of IC card Authentication and Matrix Authentication. We have recovered both of them at around 10:00.
We sincerely apologize for your inconvenience.

June 15
Tokyo Tech Mail
  • Date of system failure occurred: 8:15 - 9:50, June 15, 2020

Some e-mails were delayed to deliver from 8:15 a.m. to 8:35a.m. this morning. We have recovered the service at around 9:50 a.m.
We sincerely apologize for your inconvenience.

May 14
Tokyo Tech Portal
  • Date of system failure occurred: 13:30 - 15:00, May 14, 2020

We recognized that it was hardly to connect to both of IC card Authentication and Matrix Authentication. We have recovered both of them at around 15:00.
We sincerely apologize for your inconvenience.

2019

Dec. 11
Fault in the Building Access System
  • Date of system failure occurred:Morning, December 11, 2019

There was a fault in the Building Access System that arises from replacing the server system and some buildings were not opened. Now the system has been recovered completely.
We sincerely apologize for your inconvenience.

May 21
Tokyo Tech Portal
  • Date of system failure occurred:9:15 - 11:30, May 21, 2019

We recognized that it was hardly to connect to both of IC card Authentication and Matrix Authentication. We have recovered both of them at around 11:30.
We sincerely apologize for your inconvenience.

2018

June 27
Tokyo Tech Portal
  • Date of system failure occurred:13:00 - 14:30, June 27, 2018

We recognized that it was hardly to connect to both of IC Card Authentication and Matrix Authentication. We have recovered both of them at around 14:30.
We sincerely apologize for your inconvenience.

2017

Oct. 14
Tokyo Tech Mail
  • Date of system failure occurred:October 14, 2017

Delivery of some e-mails were delayed because of server failure. We have recovered the system at around 19:15.
We apologize for the inconvenience.

Sept. 14
System failures for Tokyo Tech Portal and Tokyo Tech Mail
  • Date of system failure occurred : September 14 13:30 - 15 11:00, 2017

Authentication settings’ failure caused disconnection to Tokyo Tech Portal and Tokyo Tech Mail for a while.
We have tentatively recovered the mail system by returning to the old mail system, which will be used until 14:00 September 22.
We are truly sorry for your inconvenience.

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Created by: The Authentication Infrastructure System Team

Tokyo Institute of Technology Portal > Notices > Information for System Failure