The DFN Association (Association for the Promotion of a German Research Network) has informed us that the eduroam service (Easyroam) is currently experiencing disruptions.

Network connections via eduroam cannot be established reliably at this time.

The DFN is working on a solution; no further information is available at this time.

Trouble caused by: Unknown

On Montag, 16.2.2026 between 11:00h and 11:30h the DOOR System (DESY Online Office for Research with Photons, https://door.desy.de) will not be available.

During this time period the database of the DOOR system will still be accessible for the DESY Gamma Portal (https://gamma-portal.desy.de).

Maintenance caused by: Softwareupdate

The maintenance has been finished.

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On the second Friday of every month, the monthly Windows updates are released. Please install them on your DESY Windows devices as soon as possible to ensure that they are up-to-date and secure.

To do this, connect your Windows device to the internal DESY network after the updates have been released. Use VPN if you are extern. When prompted or at the end of the day, restart or shut down your Windows device.

Seven days after the release of the updates, a forced restart of the computers will take place if this has not taken place in the meantime.


Hint:
On Wednesday which follows the release of the updates from 17:00 to max. 20:00, trouble-free working in the Windows environment cannot be guaranteed due to the monthly maintenance work on the central Windows servers.

It is recommended to log off or shut down DESY Windows devices on Wednesday before the maintenance starts. You should also log off from public Windows systems (terminal servers) beforehand.

Maintenance caused by: Windows updates and the monthly maintenance work on the corresponding central computers

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Regular Maintenance Slot: TSM (ADSM) backup server

Time: each Tuesday, 12:00 pm - 8:30 pm
Systems: all

Impact: The TSM backup servers will be partly down. It will not be possible to restore files on the central Unix or Windows systems from backups made by the TSM.

An apology must be made in advance: It is always possible that things do not work as planned. Therefore the given ending times may not be kept as promised.

Maintenance caused by: Update of the Service

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The following two DESY standard PCs are currently no longer available from stock:

- Dell Pro Micro Lite QCM1250 (U5/16/512)
- Dell Pro 14 Plus PB14250 (with US keyboard)

If these devices are requested via the AMS, significantly longer delivery times must be expected. Depending on the outcome of the ongoing price negotiations, these devices may also no longer be available at the previous price.

Caused by; General shortage of RAM, hard drives, and SSDs on the market (see: https://www.techbook.de/pc-mac/hardware/dram-speicher-preis)

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In this storage service, the default settings for permissions when sharing a directory may lead to unplanned behaviour, which we would like to draw your attention to with this information.

The behaviour is based on the fact that the default settings also include the right to delete. The result can be that data becomes inaccessible to the person who shared the data if one of the persons with whom the data was shared moves it; this corresponds to copying it to the target folder and then deleting it in the source folder.
The files and directories are not lost, but are now in the directory tree of the person who moved them.

To work around this issue until it is fixed, the recommendation is not to move any data that has been shared with you via Sync & Share. Persons already affected will be informed directly.

A support request is in progress at the manufacturer.

If you have any questions, please contact uco@desy.de.
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Starting Wednesday, 04.02.2026, at 12:00 PM, Cisco VPN-based connection attempts originating from devices with outdated operating systems will be blocked.
Additionally, only the Cisco VPN Client will be supported for Cisco VPN connections. Connection attempts via native VPN clients (such as IPSec on macOS) will no longer be possible from that point.

Further details on the implementation of these measures, as well as recommended actions, can be found on the following webpage:
https://it.desy.de/services/networks/vpn/vpn_access_restrictions

Please also note that unblocking your IP address may be needed. In that case use the service https://it-access.desy.de. Additional information on this service can be found here:
https://it.desy.de/services/external_access/it_access

We previously informed about these planned measures in mid-January:
https://it-news.desy.de/?TicketID=1197&lang=en

From Wednesday, 04.02.2026 access to the following services from outside will be restricted:

- Login via Kerberos (a central authentication service)
- Access to AFS (a central Linux file system)

To continue accessing these services from outside, please open the page https://it-access.desy.de beforehand. Only after that, login commands like kinit or aklog (for Kerberos) as well as fs listacl, fs setacl, or fs listquota (for AFS) can be executed.

Further information about IT-Access can be found on the following web page:
https://it.desy.de/services/remote_access/it_access

For security reasons, it is necessary to protect as many services as possible with multi-factor authentication (MFA). Since Kerberos and AFS themselves do not offer the option to secure access via MFA, restricting access in this way is required instead.

Starting Tuesday, 13.01.2026, users establishing Cisco VPN connections with outdated operating systems will receive individual email notifications.

This is a preparatory measure ahead of the planned blocking of such connections from 03.02.2026, to ensure network security in compliance with the requirements of the Computer Security Council (RSR).

For macOS users, the option to use Apples native VPN client (IPSec) will no longer be available in the future. Alternatives are eduVPN or the Cisco VPN client (download via https://vpn.desy.de).

For further information, please refer to the VPN documentation:
https://it.desy.de/dienste/netzwerke/vpn

We will provide separate updates once the blocking of connections is activated.

If you have any questions, please contact the IT Helpdesk at any time (uco@desy.de, phone: 5005).