@Semmel Hi, welcome in the community 👋🙂
I want to assure you that a precise configuration of your local workplace at home is very important. For example:
LAN cable: For a pleasurable Giga Speed a high quality LAN cable is indispensable. Please make sure that all LAN cables in use have at least the designation CAT5e. CAT6 and CAT7 can also be used.
Router: Your network components, which you install additionally, must also be Gigabit-compatible. Again, it is important that your devices support and guarantee full speed.
End device: Your computer, which is connected via LAN cable, must have a Gigabit network card installed. This must be set to full duplex mode and have an up-to-date driver installed. If you use a USB-LAN adapter, it must also support the full Gigabit speed. The whole system should also be kept up to date with updates.
Antivirus: Antivirus and software firewalls can slow down your system. Keep this point in mind when you do a speed test. Under no circumstances should your computer have more than one antivirus program installed.
If you have checked everything and followed the instructions, then do the speed tests again using this link here: https://www.upc.ch/en/internet/speedtest/
If the results of the speed test are not great, write the UID numbers in note form (you will receive this UID number after each speed test). And then please contact our technical support, and mention these UID numbers so that our colleagues can start an analysis. I will now also add a note to your account so that our technicians are pre-informed if you call. The number is 0800 66 88 66.
Best regards, Cem