on You have been offline since around 6:13 a.m.
We are currently investigating the cause. As soon as we have further information, we will update this blog post.
Update:
You are back online. There was a power outage which caused our hardware to be offline for around 3 hours.
10:50AM And you are offline again. We are looking into it.
on We have received information from our internet provider BelWü that on July 2, 2026, from 8 AM to 6 PM, maintenance work is planned as part of the network expansion at the Hohenheim East and West locations. Although we were not explicitly mentioned, it is possible that there may be an impact on internet availability in the dormitories.
Check the status for that work here: https://www.belwue.de/trouble-tickets/ticket/739.xml
on ‘Hacking’ refers, amongst other things, to the creative repurposing of electronics to achieve specific goals.
We’ll be finding out tomorrow, 17 June, from 5.00 pm, at the Village Council’s summer festival, whether throwing a network switch to achieve quite impressive distances also falls under this definition.
Do come along!
As well as the switch-throwing competition, we’re of course also up for lively discussions on both technical and non-technical topics.
We’re still sorting out the arrangements, but with a bit of luck we might even be able to hold a patch competition tomorrow!
on Since around 6 pm yesterday evening, Netz-AK has finally joined Mastodon.
There isn’t much to see yet but that will come in time.
You can follow us here:
on Tomorrow on 2026-05-25 we will exchange the Alcatel switches that we installed in 2021 in Kaiser-Wilhelm-Straße, which were already old at the time but nevertheless capable of Gigabit Ethernet, by new MikroTik devices.
There will be brief interruptions of service.
For us, the new hardware is vastly better to manage and makes our network future proof. We also hope to resolve some issues for a few of you Geislingen residents that had connectivity problems in the last weeks.
Update 2026-05-25 17:00: All work is successfully completed!
on We were informed by BelWü that there will be maintenance work that could effect our internet connection.
Here you`ll find the information provided to us. For details, follow the link (in German).
Beginn: 2026-05-13 00:00
Ende: 2026-05-13 06:00Den Verlauf dieses Vorgangs können Sie unter folgender URL erreichen:
https://www.belwue.de/trouble-tickets/ticket/700.xml
on We were informed by BelWü that there will be maintenance work that could effect our internet connection.
Here you`ll find the information provided to us. For details, follow the link (in German).
Beginn: 2026-04-30 00:00
Ende: 2026-04-30 06:00Den Verlauf dieses Vorgangs können Sie unter folgender URL erreichen:
https://www.belwue.de/trouble-tickets/ticket/699.xml
on We plan to do some maintenance in our central server room today in the evening. There may be short interruptions of service. We will inform you here once the works are done.
Update 21.00: All work is done. Our network cabinet, where all optical fibers come together, got new long rack rails. The old ones were too short and inflexible, screw nuts were hard to place. The renovation took place during ongoing operations and we only had to reconnect some cables that were in the way, which is why we could not avoid some brief connection dropouts. With the new rails in place we are ready for some more upgrades: Soon we will also exchange our old core switch. As always, we will inform you beforehand.
on In Hohenheim, we’re moving forward again: on April 12, 2026, we will replace the old hardware in three buildings, which should result in an “improvement” to the internet connection.
The affected buildings are Fruwirthstraße 11 and 13, as well as Welfenstraße 80.
We will work through the buildings one by one. Depending on the number of connections, the internet outage may last between 30 to 60 minutes. (For some, it may be shorter—depending on where your port is on our switches. So don’t be surprised if your neighbor gets their internet back before you do.)
on We were informed by TüNet that there will be maintenance work that could effect our internet connection.
Here you`ll find the information provided to us.
Beginn: 2026-04-08 23:00
Ende: 2026-04-09 04:00