In rare cases, we must temporarily block certain connections to protect our network. This is done because of what are called abuse reports, which indicate that abusive activities might be happening from a connection. We receive this report from the BelWü-CSIRT (Computer Security Incident Response Team), and our task is to stop the abuse with appropriate actions, which we do by turning off the connection of the room.
What is an abuse report?
In short, an abuse report is triggered when suspicious or unusual activities are observed coming from an internet connection. This could be, for example, sending spam emails or unauthorized attempts to access other computers. Often, you may not be aware of this behavior because it is usually caused by viruses or other malicious software that has secretly installed itself on one of the devices in the network.
No blame on you
We want to emphasize that such a blocking is in no way meant as a blame towards the affected users. In most cases, you are victims of malicious software acting without your knowledge. Our priority is to quickly identify and solve the problem to prevent further damage.
Why we block the connection
The fastest and most effective way to inform you about a possible security issue is by temporarily turning off the connection. This measure immediately attracts attention and prompts most users to contact us right away. This way, we can address the problem together as quickly as possible.
We are almost always available
Please note that we are also available on weekends and outside regular working hours. If your internet connection unexpectedly stops working, do not hesitate to contact us. We are ready to analyze the problem and offer you steps to solve it. Together, we can ensure that your connection is quickly safe and fully functional again.
The security and reliability of our network are very important to us. Through proactive measures like these, we want not only to ward off potential threats but also to raise awareness of the importance of network security. We thank you for your understanding and cooperation in keeping our shared digital environment safe.
If you have any questions or concerns, we are always here for you.
In week 3, which is from January 15 to January 21, some maintenance work is scheduled.
The maintenance work starting on Friday will be long and unpleasant for the people in Hohenheim.
The fiber optic lines in Hohenheim to get extended to be used in a different location because of the renovations.
Without the fiber optic line, there will be no internet there.
The work will be carried out by a specialist company and is scheduled to start on Friday morning, which is January 19.
The work will take a long time, so we announce a complete internet outage in all student dormitories in Hohenheim from Friday morning to Saturday noon.
If it’s done faster, please avoid sending us messages all day. It won’t speed things up.
The company will complete their work as quickly as possible, and we will reconnect the fiber optics.
On Thursday, January 18, starting around 5:30 PM, we will finally be able to equip our dormitories in Konrad-Adenauer-Strasse with modern technology.
For the residents, this means they will be able to use gigabit internet in their rooms afterwards.
Since we haven’t been able to implement the exclusive use of routers in Konrad-Adenauer-Strasse due to technical reasons, we will not enforce this immediately but only from the start of the summer semester (April 1, 2024).
We expect the installation to take about 3 hours, meaning you will probably have unrestricted internet access again from 9:00 PM.
There will be a maximum half-hour interruption in internet access at the Schimpf-WG. We had announced this work several times before but could never implement it due to problems accessing our hardware in the neighboring building. We cannot say exactly when this will be, but it will happen some evening between Monday and Thursday.
After a failed network-wide update on the night of December 27th to 28th, several buildings experienced unspecific internet outages. We are in the process of resetting all devices and hope this will fix the disturbance. When resetting, the devices will restart, and you will be completely offline for up to 15 minutes. This was, of course, not planned. Please always report outages directly to us and not in any messenger groups. As soon as we receive feedback, we can take appropriate action.
In Geislingen, Sigmaringen, and Albstadt, we have installed Gigabit switches for quite some time. It was more of a coincidence that these places were equipped with Gigabit internet before Tübingen and Hohenheim.
We have just checked how many residents of the dormitories actually use the offered Gigabit internet.
The results are somewhat sobering: In Albstadt, 53% of the residents use the Gigabit internet, in Sigmaringen it’s 33%, and in Geislingen only 25%.
This raises the question of whether we have not informed well enough that Gigabit can be used with the right router, or whether the residents simply do not need such high internet speed.
We replaced our hardware.
Most rooms should be working, some cables need an electrician.
Next step is to stop the leaking heating.
The water is running through our electrical cabinet, some ports have already failed. Our hardware is now off the grid and will be scrapped.
We will set up new hardware later this evening and place it next to the cabinet in the dry.
Sadly, we often hear the following two statements:
It can’t be the router settings because my Wi-Fi is working.
Here’s a photo of my working Wi-Fi connection, so my internet must be broken.
The root of the issue seems to be that people don’t understand the difference between Wi-Fi and internet access.
Here are three examples that could explain the difference to you.
Imagine your home is like a big library (which represents the internet). The librarian (your router) helps you find and borrow books (data). You and your family members can chat with the librarian using walkie-talkies (this is your Wi-Fi connection).
Now, even if the librarian’s walkie-talkie is working fine and you can talk to them (you have a Wi-Fi connection), the library might be closed or inaccessible (internet connection is down).
So, having a working walkie-talkie (Wi-Fi) doesn’t necessarily mean the library (internet) is open. The two are related, but different!
Imagine your Wi-Fi router is like a post office in your home. All your devices (like phones, laptops, and TVs) send and receive messages through this post office. Now, just because the post office is open (meaning your devices are connected to the router), it doesn’t necessarily mean it can send or receive mail to and from the outside world.
The Internet connection is like the trucks that come and go from the post office to other places. If there are no trucks coming in or going out (meaning no Internet connection), then your post office can’t actually send or receive any mail beyond your home. Your devices can still “talk” to each other within the home, like sending files or printing, but they can’t access anything from the wider world like websites or online games.
Having a Wi-Fi connection to a router is like being connected to the switchboard inside your house. You can talk to other devices in your home, like your smartphone talking to a smart TV. But that doesn’t mean the switchboard is connected to the outside world.
The router has another job: it needs to connect to the internet, which is like connecting your home switchboard to the big phone network outside. If that connection is missing or not working, you won’t be able to browse the web, watch online videos, or do anything else that needs the internet, even if you’re still connected to the router via Wi-Fi.
So, Wi-Fi connection to the router is just the first step. The router itself also needs to be connected to the internet for you to do most of the things you want to do online.