Arbeitsgemeinschaft Dresdner Studentennetz

New support hotline


Written by Markus Helbig, 2020-06-04. Permalink

We are glad to announce that we can offer a new support hotline (at 0351 89670993) to you. Because of some technical difficulties when changing our phone operator we unfortunately needed to switch to this new number. We are trying to be contactable by phone at least on Mondays and Thursdays 7-8pm. In the contact box on our website, there will be a hint (green bullet) if the number is additionally reachable during other times. We are sorry for not being able to offer personal support for such a long time.

Outside of our support hours, you can of course leave us a ticket.

MTU adjustments Reichenbachstraße


Written by Jakob Müller, 2020-05-03. Permalink

Due to construction work, the fiber optic connection to Reichenbachstraße is currently not available.

If there are problems using some internet services, the MTU must be set to 1420 bytes in the router/computer. The exact procedure for this can be found in the manual of the corresponding device.

Downtime Reichenbachstraße


Written by Marcel Beyer, 2020-04-16. Permalink

On 2020-04-16 the uplink of Reichenbachstraße has to be changed to an alternative uplink due to longer construction works. This will cause outages from 6pm on. We try to keep the outage short as possible.

No office hours until further notice

All dormitories

Written by Tobias Kadenbach, 2020-03-12. Permalink

All of our offices will remain closed until further notice, but mail support will continue to take place.

On the March 12th the Saxon State Ministry for Social Affairs and Social Cohesion published a warning stating that "if there are events with fewer than a thousand participants, it needs to to be checked carefully whether these must take place." Based on this recommendation and the decision of the TU Dresden to postpone the start of lectures to April 27, 2020, we have decided to cancel all office hours at least by April 27, 2020 as a precautionary measure for our voluntary active and our passive members.

If you experience any problems, our ticket system and our email support at are of course still available. To compensate the cancelled office hours we've set up a support hotline (0351 21715530). We try to be reachable at the best possible rate during the times of our office hours (Monday and Thursday, 7pm to 8pm).

If you want to become a member, you can deposit the documents in our mailboxes. You can find these at Hochschulstraße 50, Wundtstraße 5 and Borsbergstraße 34. Please note that these must be complete (including all checkboxes, signatures, and the data protection declaration (on the back)) and legible, and that the processing of applications can take up to a week. Please don't forget to label your letterbox with your name so that we are able to deliver your copy of the application.

We wish all our members the best of health and hope to see you again during our office hours soon.

Downtime FL16

Fritz-Löffler-Straße 16

Written by Marcel Beyer, 2020-03-05. Permalink

On the 2020-03-05 there will be done construction workings on the fibre infrastructure by the Studentenwerk from 8am to 4pm. This will affect the uplink of FL16. Please expect downtimes of our network at FL16 during this time.

Alterations Güntzstraße

Gützstraße 22

Written by Marcel Beyer, 2020-03-04. Permalink

On the 4th and 5th of march there will be a relocation of a rack at Güntzstraße. This will lead to downtimes in section B of the building.

Office hours semester break winter 2020

All dormitories

Written by Tobias Kadenbach, 2020-02-22. Permalink

From 2020-03-01 until 2020-04-01, the office hours will change as follows:
The offices at Hochschulstraße and Borsbergstraße will be open at the usual times on Mondays only.
The office at Wundtstraße will be open at the usual time on Thursdays only.

You can still contact us via e-mail anytime. The offices might be open at other times, too, but there is no guarantee.

AG DSN wishes its members and all students a relaxing semester break.

Downtime and network upgrade

Zellescher Weg

Written by Tobias Kadenbach, 2020-01-21. Permalink

This weekend we will update our network in Zellescher Weg to our new hardware platform. Please expect a downtime on Saturday and Sunday. If you are interested in our work, you can come along in our office in Wundtstraße 5 and take a look.

Update: We finished our work, all connections should be up and running again.

Shutdown of Steam HTTP cache

All members

Written by Richard Mörbitz, 2020-01-18. Permalink

We just shut down our HTTP cache. Since this service was only available for Steam and only a few members used it, there will be little to now impact on our network. The shutdown enables us to take measures to increase the reliability of other services.

Outages in dormitories with new hardware platform

Gret-Palucca-Str. 9 Güntzstraße Marschnerstraße Reichenbachstraße Gutzkowstraße

Written by Marcel Beyer, 2020-01-14. Permalink

Recently, there have been repeated outages in the dormitories Gret-Palucca-Str. 9, Güntzstrasse, Marschnerstrasse, Reichenbachstrasse, Gutzkowstrasse. We would like to apologize for any inconvenience this may have caused. Unfortunately we can not guarantee that these were the last failures. The situation with the relatively frequent breakdowns in these dormitories does not fulfill our own demands. We are working accordingly to determine the causes, to be able to prevent these failures in the future.

We are already operating our new hardware platform in these dormitories, which enables us e.g. to provide WiFi aside of the wired connection. We have been operating this hardware in the first dormitories since October 2019, so we have not yet been able to gain as much experience with the hardware as with the old hardware, which we have been using for over 10 years now.

At Güntzstraße we also have to use old multimode fiber optic cables, which have very high attenuation. These are also currently causing problems. The Studentenwerk has already started to replace these cables with new singlemode cables. So that there should be initial improvements after the fibres are replaced.

To be able to solve the initial troubles with our new platform, we are dependent on having a lot of information about the failures. We are currently in the process of developing a system with which we can automatically detect issues in the dormitories and collect some information about the outages.

Until then - and also for the past failures - you can help us by providing information about the outages. This information could be, for example, the following:

• What dormitory and what room do you live in?
• When did the outage begin?
• Was it a total failure or just a very slow connection?
• In Gret-Palucca-Straße: Was only the cable connection affected or also the WiFi provided by us?
• Did the Internet break down abruptly or did it deteriorate gradually?

If you are technically more experienced:

• Are the following addresses pingable during the outage:
• Can you still resolve addresses via our DNS server?

You can send us this information by e-mail to

On our status page you can also check at any time whether a failure is already known to us.

Thank you very much for your help!