On Tue, 22 Mar 2022 16:06:49 -0700
Gregory Nowak via Dng <dng@???> wrote:
> On Tue, Mar 22, 2022 at 12:38:05AM -1000, Joel Roth via Dng wrote:
> > In any case, by enabling the 5GHz radio with AC mode,
> > WPA2-PSK and 80MHz signal width my BCM43228 associated with
> > the router and received an IP address.
>
> I'm not familiar with that particular chipset. However, based on the
> above, that would suggest your network card presents the 5 GHz radio
> on wlan0, and the 2.4 GHz radio on wlan1.
>
>
> On Tue, Mar 22, 2022 at 08:54:06PM +0100, Florian Zieboll via Dng wrote:
> > With both available USB-WiFi-Dongles (rtl8192cu and rt2800usb), I can
> > see the devices
> >
> > $ iw dev
> > $ iw list
> > resp.
> > $ iw phy0 info
> >
> > as well as the available networks
> >
> > $ iw wlan0 scan
> >
> > but dhclient times out, when querying the "Fritzbox":
> >
> > No DHCPOFFERS received.
> > No working leases in persistent database - sleeping.
> >
> > Installing NetworkManager via Android-AP and '/etc/network/interfaces',
> > as an "emergency workaround", solved the issue for now. Interestingly,
> >
> > $ iw dev
> >
> > tells me, that I am not connected with 5GHz, as I first had assumed,
> > but on
> >
> > channel 11 (2462 MHz), width: 20 MHz, center1: 2462 MHz
>
> I saw something similar on openwrt 21 on a gl.inet ar750 router. What
> they did was to switch around the frequencies used by wlan0, and
> wlan1. This was done by defining the band to use in the radio0 and
> radio1 sections of /etc/config/wifi. How that actually does what it
> does behind the scenes of UCI abstraction I wasn't able to figure out.
Hi,
it is done changing the settings of the hostapd daemon
(in devuan in /etc/hostapd/hostapd.conf hw_mode=a/hw_mode=g)
Ciao,
Tito
> The result of this was that I needed to rmmod the modules used by one
> card, run wifi down, uncomment the band lines in each radio section, and run
> wifi up with no networks enabled in order to scan for networks on a
> particular band, and then I needed to run wifi down,
> reverse changes in /etc/config/wifi, modprobe modules, and run wifi up to connect to a
> network.
>
> I wondered why they did this, until I discovered that using I believe the 5 GHz
> radio in the 5 GHz band caused both wifi radios to become
> unresponsive. I needed to either reboot the router, or rmmod all wifi
> modules, and modprobe them again to regain wifi functionality.
>
> Greg
>
>
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Re: [DNG] Wifi problem - dhclient t…
