I’ve got a new 6Ghz wifi network set up
I have KDE 6.3.4 on Debian Trixie.
Yes, I realise this is not directly a KDE issue, I can see the network from the Networks icon on the bottom right of the screen, but connecting to it seems to fail after a few seconds.
I can’t find any logs - what’s the application called (other than systemd-networkd) that’s managing this connection? Is there a debug option I need to set?
Don’t be so sure that it’s not a Plasma issue cause this stated for most peeps from 6.3.3 forward. I’m not one to buy coincidence.
Below are numerous general tips that can help remedy dropped WiFi connections:
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Reboot both your router and computer.
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Disable MAC Address Randomization with the following command:
```
echo -e "[device]\nwifi.scan-rand-mac-address=no" | sudo tee /etc/NetworkManager/conf.d/disable-random-mac.conf
```
---
---
After modifying Network Manager’s configuration in any way, reboot both your router and your computer.
---
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Disable Network Manager’s WiFi power saving features with the following command:
```
echo -e "[connection]\nwifi.powersave = 0" | sudo tee /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
```
A setting of “0” will totally disable power saving features in the WiFi adapter.
A setting of “2” or “1” will be less aggressive, but still leave power saving enabled.
---
---
Add the following kernel boot parameters to grub:
```
ipv6.disable=1 pcie_aspm=off
```
The following command will automatically add the above kernel boot parameter to /etc/default/grub:
```
sudo cp /etc/default/grub /etc/default/grub.bak && sudo sed '/^GRUB_CMDLINE_LINUX_DEFAULT=/s/"$/ ipv6.disable=1 pcie_aspm=off"/g' -i /etc/default/grub
```
After adding the boot parameters, run:
```
sudo update-grub
```
Then reboot
---
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Try locking your Wifi connection to your AP’s SSID in network manager.
You can do this in Network Manager’s “Wi-Fi” tab in your WiFi connection’s properties settings.
There is a “BSSID” drop down field where you can select and lock your home Wi-Fi to a single BSSID.
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Try assigning your computer a static IP address via MAC address association through your router configuration settings.
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Set a fixed wifi channel that is the least congested in your router configuration utility.
There are utilities you can install on your cel phone to diagnose the wifi traffic in your area and help identify the best channel to select.
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Test your wifi on the 2.4 GHz band, and be sure you have separate BSSID’s for the 2.4 and 5 GHz bands set in your router.
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Sure - but none of this tells me where how KDE’s Networks panel talks to the wifi card or where it logs.
What does dmesg say about wifi?
plasma-nm (the thing in the panel) is based on NetworkManager. You can look at the log using journalctl -u NetworkManager. Looking at dmesg is likely more useful though.