On this page, you will find information about the options available for reporting service disruptions and the times when you can do so.

Incidents during regular business hours – 8:00 AM to 5:00 PM Mon – Thu & 8:00 AM to 4:00 PM Fri

The person designated as the contact for the network (opens in new tab)or the domain (opens in new tab)can report incidents...

• via phone at 0241 80-24680
• by (Send an email to:) Mail
• or through the ticket portal (opens in new tab).

Incidents outside of the buisness hours - after 5:00 PM Mon – Thu & after 4:00 PM Fri

Outside business hours, in emergencies, the on-call service can be reached at 0241 80-24681. Only devices and connections related to a failure in the backbone (opens in new tab) or XWIN access (opens in new tab), as well as building routers managed by the IT Center, are supported.

Please have important information ready such as address, building, department, name, and a callback number, which you may also leave on the voicemail. Ensure access to your building if necessary, and assist in narrowing down the cause of the outage.

The exact times the on-call support can be reached are as follows:

• Monday – Thursday: 5:00 PM – 8:00 AM (next day)
• Friday: 4:00 PM – 12:00 AM (midnight)
• Saturday: 12:00 AM – 12:00 AM (all day)
• Sunday: 12:00 AM – 8:00 AM (Monday)