Wireless LAN (utwlan-w) in the library may be unstable due to maintenance as follows.

・Date and time：Tuesday, November 25, 2025, 11:25 am to 12:15 pm
・Scope of Impact：The on-campus Wireless LAN System may be unstable, and reauthentication may be required again.

If utwlan-w is unavailable, you can use the wireless LAN by connecting to the trial service utwlan-x.
Please refer to the following page for the connection procedure for utwlan-x.

On-Campus Wi-Fi System via 802.1x authentication (in test operation) | Academic Computing & Communications Center, University of Tsukuba
https://www.cc.tsukuba.ac.jp/wp_e/service/wireless-x/

Reference：

学内無線LANシステム（utwlan-w）メンテナンスに関して（2025/11/25）| Academic Computing & Communications Center, University of Tsukuba
https://www.cc.tsukuba.ac.jp/wp/net20251125/

Thank you for your cooperation.