Measures against vulnerability for network devices in Bunkyo School Building (2021/12/22)

A vulnerability has been discovered in network equipment at Bunkyo School Building

We will fix this problem at the next date and time.

Network communication will not be interrupted during the operation, however, communication may become unstable at the Bunkyo school building.

Date: Wednesday, December 22, 2021, 12:30-13:30
Content: Maintenance of network equipment in Bunkyo school building

(12/16 update)(postponed)Maintenance for Virtual environment of ACCC

The maintenance been postponed.
We will announce the postponed schedule on this web page as soon as it is decided.(update 2021/12/16)


The maintenance for virtual environment of ACCC will be take place on December 19th(Sun). The servers on the environment are not available for about 10 minutes between 8:30 to 9:30.

Mainly affected systems are as follows:

  • Library System
  • Groupware office system (mail system for @un domain)
  • Mail Gateway
  • Zengaku Computer System
  • Rental servers (operated by ACCC)

*2021/12/13 Time has changed.

(Fixed)Trouble reported in playing MS Stream video

(2021/12/9)
This problem has been fixed. We apologize for the inconvenience.


We have been reported trouble in playing MS Stream video and are querying Microsoft.
We apologize for your inconvenience.

Maintenance of Network Equipment in Bunkyo School Building, Tokyo Campus (postponed)

The following maintenance has been postponed.

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Maintenance of the network equipment at the Bunkyo School Building will be performed on the following date and times.

During the maintenance, the network of Bunkyo School Building and the Elementary School, University Tsukuba will be down.

There will be no impact on other schools belonging to the Education Bureau of the Laboratory Schools other than the Elementary School, University Tsukuba.

Date: Sunday, December 19, 2021, 10:00-11:00 (about 15 min)

Content: Maintenance of network equipment in Bunkyo school building

Maintenance of Mail Gateway (postponed)

The following maintenance has been postponed.

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The following maintenance will be performed on the communication device connected to the Mail Gateway that checks for viruses and spam in the mail operated at the Academic Computing and Communications Center

Please note that emails that go through the Mail Gateway will not be relayed during the maintenance.

Most mail servers are set up to try to resend messages after a certain period if they are unable to connect to the destination server.

However, whether or not to make such settings depends on the operation policy of the sender’s mail server.

If you are unable to receive e-mails sent out at that time, please ask the mail server administrator of the sender.

Date:Sunday, December 19, 2021, 8:30-9:30 (about 10 min)

On third party made software purchased at Microsoft Teams App Store

By Microsoft, from October 2021, Users can purchase third party made software at Microsoft Teams App Store.
However, please be informed that the EES team of Univ. Tsukuba does not support should any trouble caused by purchasing/installing/using such software.
We apologize for the late announcement.

Updated Trend Micro Apex One (Windows version) (build 9645)

The Anti Virus Software, Trend Micro Apex One (Windows version)has been updated.
The latest version is 14.0.9645 (build 9645)

The latest one is distributed from Download station.

To update the latest version, reboot your PC while connected with management server.
It is automatially updated if you leave for a few minutes to boot.
Depending on the circumstances of management server load, update process may take a few days or not be done automatically.

If you wish to update the latest version forcibly, please download from Download station then install it.

On-Campus Wi-Fi System maintenance (2021/10/31)

We would like to inform you that we will be performing our On-Campus Wi-Fi System maintenance
on Oct. 31(SUN) from 9:00am to 9:30am.
During this period, the following services will be unavailable

・On-Campus Wi-Fi System
・On-Campus Wi-Fi System via 802.1x authentication (trial operation)
・eduroam Wireless LAN
・Guest Wireless LAN

We are sorry for this inconvenient.
Thank you for your understanding.

About stopping utwlan-xa On-Campus Wi-Fi System

Regarding utwlan-x in the SSID of the On-Campus Wi-Fi System, we created utwlan-xa so that we can connect as an alternative method when a problem occurs before.

However now the problem has been solved, so we will stop utwlan-xa around 9:00 a.m. on Monday, September 13, 2021.

If you have been using utwlan-xa, please use utwlan-x after that.