I had the same problem and I was able to fix this on my machine using guidelines from @joepadmiraal - thank you!
Here are the steps I followed: 1. I went to to https://cdn.kernel.org/pub/linux/kernel/firmware/ and downloaded https://cdn.kernel.org/pub/linux/kernel/firmware/linux- firmware-20230804.tar.gz file into /home/andrzej/Downloads. 2. I unpacked the downloaded file into /home/andrzej/Downloads/linux- firmware-20230804 tar zxvf ./linux-firmware-20230804.tar.gz 3. I created a backup directory /home/andrzej/lib-firmware-backup. mkdir /home/andrzej/lib-firmware-backup 4. I backed up Wi-Fi firmware files. sudo mv /lib/firmware/iwlwifi-* /home/andrzej/lib-firmware-backup 5. I copied Wi-Fi firmware files from downloaded archive into /lib/firmware. sudo cp /home/andrzej/Downloads/linux-firmware-20230804/iwlwifi-* /lib/firmware Note that the files in /lib/firmware are compressed (they have *.zst extension), and the files the downloaded archive are not compressed. This is not a problem; I just put uncompressed files in /lib/firmware and things worked fine. 6. I backed up Bluetooth firmware files. sudo mv /lib/firmware/intel/ibt-* /home/andrzej/lib-firmware- backup/intel 7. I copied Bluetooth firmware files from downloaded archive into /lib/firmware. sudo cp /home/andrzej/Downloads/linux-firmware-20230804/intel/ibt-* /lib/firmware/intel After restarting the machine, Wi-Fi and Bluetooth are back. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/2040106 Title: Intel wifi and bluetooth firmware broken after upgrade to Ubuntu 23.10 Status in linux-firmware package in Ubuntu: Confirmed Bug description: After upgrading from Ubuntu 23.04 to 23.10 on a Dell Precision 5560, wifi and bluetooth did not work anymore. Looking at the dmesg output I saw this: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-59.ucode failed with error -2 .. Direct firmware load for iwlwifi-QuZ-a0-hr-b0-39.ucode failed with error -2 no suitable firmware found! minimum version required: iwlwifi-QuZ-a0-hr-b0-39 minimum version required: iwlwifi-QuZ-a0-hr-b0-59 These files did seem to exist in /lib/firmware. I did sudo apt install linux-firmware/mantic --reinstall Which did not fix it. I manually overwrote the iwlwifi... files with the corresponding files from linux-firmware-20230804.tar.gz and this did fix the issue. I did the same for ibt-19-0-4.sfi and that fixed the bluetooth issue. So my best guess is that something is wrong in the latest firmware package. lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 23.10 Release: 23.10 Codename: mantic apt-cache policy linux-firmware linux-firmware: Installed: 20230919.git3672ccab-0ubuntu2.1 Candidate: 20230919.git3672ccab-0ubuntu2.1 Version table: *** 20230919.git3672ccab-0ubuntu2.1 500 500 http://archive.ubuntu.com/ubuntu mantic/main amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 23.10 Package: linux-firmware 20230919.git3672ccab-0ubuntu2.1 ProcVersionSignature: Ubuntu 5.10.0-1053.55-oem 5.10.83 Uname: Linux 5.10.0-1053-oem x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.27.0-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: joep 2545 F.... wireplumber /dev/snd/controlC0: joep 2545 F.... wireplumber /dev/snd/seq: joep 2537 F.... pipewire CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Sun Oct 22 15:19:18 2023 Dependencies: firmware-sof-signed 2.2.6-1ubuntu1 DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-focal-amd64-20200502-85 InstallationDate: Installed on 2021-10-16 (736 days ago) InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58 MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']} ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.10.0-1053-oem root=UUID=482b1305-d8fa-4fb1-be20-ae911e6a4def ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.10.0-1053-oem N/A linux-backports-modules-5.10.0-1053-oem N/A linux-firmware 20230919.git3672ccab-0ubuntu2.1 SourcePackage: linux-firmware UpgradeStatus: Upgraded to mantic on 2023-10-22 (0 days ago) dmi.bios.date: 07/13/2023 dmi.bios.release: 1.22 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.22.0 dmi.board.name: 0NG7N9 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.22.0:bd07/13/2023:br1.22:svnDellInc.:pnPrecision5560:pvr:sku0A62:rvnDellInc.:rn0NG7N9:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Precision dmi.product.name: Precision 5560 dmi.product.sku: 0A62 dmi.sys.vendor: Dell Inc. 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