CPK

rss feed

Service interruptions

A CPK is C&CZ’s way of reporting a problem or service interruption. Follow the mailing list or RSS feed, and check the service interruptions page for live status updates.

A CPK is how C&CZ reports a problem or service interruption. We publish one when something goes wrong, when we need to do planned maintenance, or when we want to let you know about something that affects the services we run.

Note

What’s a CPK? CPK is short for the Dutch C&CZ Probleem Kaart — C&CZ problem card. The name is simply how we’ve always done it, and it has stuck with us ever since.

How to follow CPK messages

CPK messages are first sent to the CPK mailing list — you can (un)subscribe there. You can also follow the service interruption messages via RSS.

When a CPK takes longer to resolve, we publish updates on the service interruptions page.

University-wide interruptions

For Radboud University-wide service interruptions, see meldingen.ru.nl.

 No service interruptions.


Resolved

March 2017

CPK#1199 Science and RU Internet network maintenance

Monday evening March 6, there will be maintenance on RU network equipment. On March 7 between ca. 01:00-01:30 no network traffic will be possible at the Faculty of Science on the wired and wireless networks. From 23:00 until March 7 02:00 there will be a period where no traffic between RU and Internet is possible. Please think which processes depend on network connectivity and prepare for this outage if necessary.

Updated Oct 8, 2026

February 2017

CPK#1198 Science Radius down

The Radius service didn’t start after the regular reboot, restarting the Radius service solved the problem.

Updated Oct 8, 2026

CPK#1197 VPNsec upgrade

Update of Strongswan server software with extra capabilities

Updated Oct 8, 2026

CPK#1196 Problem with mail delivery from RU Exchange

Monday morning several employees of FNWI were affected by a fault within the RU Exchange design whereby they could not send their mail to recipients outside of the RU Exchange (i.e. @science.ru.nl, @cs.ru.nl or elsewhere). ISC had added two additional servers to the RU Exchange service the week before, which were not yet allowed to drop their outgoing mail on designated servers for that purpose. Not all FNWI employees using RU Exchange were affected, however, since four out of six servers were still functioning properly and employees using e.g. Thunderbird use servers outside of the RU Exchange for sending their mails.

Updated Oct 8, 2026

January 2017

CPK#1195 Maintenance network Serverroom FNWI in Huygens building

The central network switch in the serverroom at the Faculty of Science will be restarted in connection with an software upgrade. Many servers and services are not available for approx 20 minutes.

Updated Oct 8, 2026

CPK#1193 Network failure in Huygens wing 8

In Huygens wing 8 a network switchmodule crashed. Several users lost their connection to the data and telephone network for some time. The switchmodule has been replaced.

Updated Oct 8, 2026

December 2016

CPK#1194 VPNsec (and RU VPN) problem with new RU firewall

The new RU Fortigate firewall, that is in place since December 13, manages fragmented IP packets inconsistently. Depending on the VPN client and its settings, this can cause problems for VPN users. The ISC found a solution for the cenral RU VPN in changing the configuration of the RU VPN as of 2016-12-19 15:50 hours. While waiting for the final solution, a temporary workaround has been used in the Fortigate firewall on April 19, which makes the problem disappear.

Updated Oct 8, 2026

CPK#1192 Network failure in Huygens wing 5

In Huygens wing 5 a network switchmodule crashed. Several users lost their connection to the data and telephone network for some time. The switchmodule has been replaced.

Updated Oct 8, 2026

CPK#1190 Maintenance indoor Vodafone cellphone network Huygens

Due to maintenance of the indoor cellphone equipment, this equipment will be out of service for one hour max on Monday December 5th.

Updated May 5, 2026

CPK#1191 Poster printer "kamerbreed" broken

The printer has to be repaired. Spare parts have been ordered. We hope to have the printer operational again this month.

Updated Oct 8, 2026