On 15.04.2026 from 8.00 a.m.

At the specified time, mandatory two-factor authentication will be activated on the central VPN gateway. After this, the VPN service can only be used with a second factor. This also affects VPN access of the central administration.

On 21.04.2026 between 06.00 a.m. and 08.00 a.m.

During the specified period Telekom will carry out a migration of telephony trunks. This may result in a short interruption (up to 10 minutes) to telephone connections to external landline and mobile networks.

On 08.04.2026 between 10.00 a.m. and 11.00 a.m.

During the specified period there may be a brief outage of the IDM portal. Due to the redundant design of the system no further impact on users is expected.

On 25.03.2026 between 10.00 a.m. and 11.30 a.m.

+++ Update 25.03.2026, 11.15 am: The maintenance work will not be completed by 11.30 am. +++ During the specified period there may be a brief outage of the IDM portal. Due to the redundant design of the system no further impact on users is expected.

On 24.03.2026 between 12.00 p.m. and 10.00 p.m.

During the specified period a security update will be installed on the local Cisco UC servers of TU Darmstadt. Changes to telephone system settings cannot be made. The TUDa UC portal will be available with limited functionality. After 6.00 p.m. there will be a brief log out followed by a renewed login of the Jabber clients. Reconnection of the service may take up to 30 minutes. Webex clients and Alcatel users are not affected.

On 18.03.2026 between 8.00 a.m. and 09.00 p.m.

+++ Update 18.03.2026 09:00 a.m.: The maintenance work has been successfully completed. +++ Update 13.03.2026 09:00 a.m.: The maintenance work announced for 17.03.2026 has been postponed and will now take place on 18.03.2026 from 8 a.m. to 9 a.m. +++ During the specified period the mandatory use of two-factor authentication (2FA) on the single sign-on (SSO) will be activated. From this time onwards, login to all services of TU Darmstadt that use the SSO will no longer be possible without 2FA. Once 2FA has been successfully set up, which can be done at any time, the affected services will be available again immediately.

On 11.03.2026 between 7.00 a.m. and 9.00 a.m.

During the specified period there may be a brief outage of the IDM portal. Due to the redundant design of the system no further impact on users is expected.

On 30.03.2026 from 07.00 a.m.

From the specified time, the webmail interface https://webmail-linux.hrz.tu-darmstadt.de/ will be secured behind VPN due to the new IT security policy, as a 2FA solution is not possible.

Between 07.03.2026 12:00 a.m. and 09.03.2026 12:00 p.m.

During the specified period two-factor authentication will be activated for standard access via vDesk.tu-darmstadt.de across the entire vDesk service. Tokens of the types TOTP and HOTP are supported.