As soon as I start our laptop and it tries to connect to the Internet, the Internet connection breaks down on all other devices. What could it be? Outdated driver on the laptop?
Turn router off and on
Tried everything, tried all settings on the router, reset, etc.
Which router do you use?
How does the laptop connect? Via Wi-Fi?
Does the connection also break on the laptop or only on the other devices?
Open the task manager on the laptop and click on "Performance" and then "WLAN". What does "send" and "receive" say at the bottom right?
Give the notebook a static IP that is guaranteed not to be used by any other device.
Basically, this could be a virus that initiates access to the network when it is started and this is then restarted for security reasons or similar.
Would run a good antivirus program, even if the likelihood of such a virus is not particularly high now. But it's worth a try.
What exactly does that mean: The Internet is collapsing? If the response times are very long, the connections are cut, e.g. Because the laptop is using the same IP as the router? What happens if you turn off the laptop's Wi-Fi? Is the connection immediately back on the other devices or do you have to log in again?
Please post more details.
So it is so that on the other devices there's still the Wi-Fi symbol in the bar, but an exclamation mark appears next to it and you can no longer access the Internet, i.e. You have your own. No Internet connection. If I switch off the laptop's Wi-Fi, Wi-Fi works fine on the other devices again.
It sounds like the laptop is posing as a hotspot and "stealing" the network traffic from the router. Reconfigure the laptop's network access exactly as on the other devices.
