Monday evening November 26, there will be maintenance on central RU network equipment: some routers will get a software upgrade. From 22:00 hours, parts of the RU network and central RU-services will not be available. Within Huygens and other FNWI buildings the internet and wireless network will not be available from 23:30-00:30 hours. Please think which processes depend on connectivity and prepare for this possible outage if necessary. Future maintenance windows can be seen on the ISC website.