Interference from bluetooth? On 3/3/21, Ryutaroh Matsumoto <ryuta...@ict.e.titech.ac.jp> wrote: >> | 3: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode >> DEFAULT group default qlen 1000 >> | link/ether dc:a6:32:ae:8d:59 brd ff:ff:ff:ff:ff:ff >> >> \---------------------------------------------------------------------- > > Just FYI, with kernel version 5.9 and 5.10, I have been unable to > get WiFi on RPi4B 8GB working with 2.4GHz. > 5GHz works fine without vc4.ko and fails with vc4.ko. > 2.4GHz WiFi is usable with Raspbian kernel 64-bit 5.10, > so I am assuming my hardware is OK. > Since I do not use 2.4GHz WiFi because it gets interfered by my > microwave oven, I have not spent much time on investigating the cause... > > Best regards, Ryutaroh > >
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