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[[cat-users]] Wrocław Academic Computer Network IP addresses block

From: Krzysztof Kostanecki <address@concealed>
To: address@concealed
Cc: address@concealed
Subject: [[cat-users]] Wrocław Academic Computer Network IP addresses block
Date: Mon, 19 Jan 2026 08:16:15 +0100

Hello,
I am contacting you on behalf of Wrocław Academic Computer Network. We are a part of PIONIER network, which is a part of GÉANT network.. We've received information that our IP addresses are blocked (156.17.0.0/16) from accessing page monitor.eduroam.org. It is needed for authentication. We are providing the internet to many users of eduroam in Wrocław, and our clients can not access this page too. These are some of our clients:
- University of Wroclaw
- University School of Physical Education in Wroclaw
- Wroclaw Medical University
- Wroclaw University of Science and Technology
- Wrocław University of Environmental and Life Sciences

Best regards

Krzysztof Kostanecki

Wrocław Academic Computer Network Maintenance Department

Wrocław Centre for Networking and Supercomputing

Wrocław University of Science and Technology, 50-377 Wrocław

Plac Grunwaldzki 9, building D-2, p. 101/12

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[[cat-users]] Wrocław Academic Computer Network IP addresses block, Krzysztof Kostanecki, 01/19/2026
- Re: [[cat-users]] Wrocław Academic Computer Network IP addresses block, Tomasz Wolniewicz, 01/19/2026