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This is a strange one. I'm having trouble figuring out what the problem is. I'll describe the characteristics of the problem:
1. My Wi-Fi on my laptop was working today and I used it for several hours. I did not update anything.
2. I came home 3 hours later and it wasn't working anymore. I was connected to the Wi-Fi, but could not access the internet. I attempted to reboot the laptop, but this did not help.
3. When running `ip a`, I observed that the wifi interface was only connected with an ipv6 address. I attempted to force it to connect via ipv4, but it failed to connect at all.
4. I tested out my Fedora Kinoite machine, which has not been updated for a month, and also cannot connect via Wi-Fi or Ethernet.
5. I tested out my Arch Linux laptop, which has a broken NIC and only connects via a USB Wi-Fi adapter, and it can connect to the Wi-Fi and internet just fine. I have not updated this machine in a few weeks.
6. I am typing this on my desktop Arch Linux computer, which does not have a Wi-Fi NIC and only supports ethernet. It can connect fine.
7. I am able to connect to my phone's personal hotspot on my Arch Linux laptop just fine, and used this to update the laptop. I noticed a few network packages (like `ppp`) and the kernel were in the update list. I still can only connect to the Wi-Fi, but not the internet.
8. My Mac and Windows desktops can connect fine to the ethernet. My Windows laptop can connect fine to the Wi-Fi.
9. Rebooting the router has not changed anything in the devices that can and cannot connect.
I have no idea what to do next...
Last edited by ignuthat (Yesterday 13:03:26)
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The problem is that the DHCP service is not assigning these computers an IP address, for some reason.
To just get it to work, you need to manually configure an IP address, which you can do in both GNOME and KDE's Wi-Fi settings.
Set it to Manual connection, and the following values:
IP Address: 192.168.1.190 (could be anything so long as it isn't taken)
Subnet Mask: 255.255.255.0
Gateway: 192.168.1.1 (the router's IP)
This works on my GNOME and KDE laptops that wouldn't connect. Solving the DHCP issue is a whole other kettle of fish.
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