It's still happening, Raspberry Pi 4 ( Raspberry Pi RAS-4-4G - Model B / 4 GB SDRAM (1822096)) and Ubuntu Core Servier 23.10
When I connect SSD drive to USB3 port (booted from SDCard), internal WiFi doesn't work, and most of the time I can see error: brcmfmac: brcmf_set_channel: set chanspec 0xd0.. fail, reason -52 (random data in place of 2 dots) I don't think it's a power problem, I use official 3A power supply, Also, I can use my additional USB Wifi adapter connected to other USB3 port - it works, when internal not. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-raspi2 in Ubuntu. https://bugs.launchpad.net/bugs/1861338 Title: RPI4 wifi unreliable when usb3 storage is attached Status in linux-raspi2 package in Ubuntu: Invalid Status in linux-raspi2 source package in Eoan: Expired Bug description: On RPI4, if you set up netplan to use wifi, and plug in a usb3 storage device to one of the 2x usb3 ports (the ones closest to the ethernet port), wifi will sudden stop working. If you unplug the usb stick while running a ping, it will usually start working again almost instantaneously. Kernel version I have is: 5.3.0-1017-raspi2 and I've confirmed this happens on both armhf and arm64 The only thing I found in journalctl that looks suspicious is this, but it seems to have happened before plugging in the usb stick: Jan 29 20:54:59 ubuntu wpa_supplicant[1129]: random: Cannot read from /dev/random: Resource temporarily unavailable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1861338/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
