Bug 2431733

Summary: Internet became slow and unstable after an update.
Product: [Fedora] Fedora Reporter: Joao Carvalho <joaoluiz>
Component: linux-firmwareAssignee: David Woodhouse <dwmw2>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 42CC: dwmw2, jforbes, jwboyer, kernel-maint, pbrobinson, ufa
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: ---
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Story Points: ---
Clone Of: Environment:
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Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Joao Carvalho 2026-01-21 19:12:52 UTC 
In the last few days I've started noticing slowness and instability in my internet connection. Initially I thought it was a problem with my local network or internet provider, but now I'm sure it was a recent package update that caused it. I'm using Fedora 42.

Here are the facts:
1) On Ookla's speed test, the download speed is between 10 Mbps and 30 Mbps at most, when it would normally be 750 Mbps. The upload speed is normal (230 Mbps).
2) The problem occurs both using Wi-Fi and a wired network.
3) Everything is normal on other devices.
4) If I boot using a Fedora 42 live-USB (that is, with older packages), on the same computer, with the same wired network, the download speed is normal (750 Mbps).
5) Booting using an older kernel (6.17-13 instead of 6.18-5) does not solve the problem.
6) If memory serves me right, problems began after the update on January 17th (see below).
7) I tried downgrading the packages using “sudo dnf history rollback”, but it says it couldn't find some of the old packages needed for the downgrade. Then I tried the “–skip-unavailable” option, but it only offers downgrading packages that have nothing to do with the issue.
8) This is an old computer, circa 2012 (see specs below).
 
These were the last updates I made:

on 17/jan/2026:

Packages altered:
  Action   Package                                        Reason          Repository
  Install  kernel-modules-extra-0:6.18.5-100.fc42.x86_64  User            updates
  Install  kernel-modules-0:6.18.5-100.fc42.x86_64        User            updates
  Install  kernel-core-0:6.18.5-100.fc42.x86_64           User            updates
  Install  kernel-modules-core-0:6.18.5-100.fc42.x86_64   User            updates
  Install  kernel-0:6.18.5-100.fc42.x86_64                User            updates
  Upgrade  amd-gpu-firmware-0:20260110-1.fc42.noarch      Group           updates
  Upgrade  linux-firmware-whence-0:20260110-1.fc42.noarch Dependency      updates
  Upgrade  qcom-wwan-firmware-0:20260110-1.fc42.noarch    Dependency      updates
  Upgrade  iwlwifi-mld-firmware-0:20260110-1.fc42.noarch  Dependency      updates
  Upgrade  amd-ucode-firmware-0:20260110-1.fc42.noarch    Group           updates
  Upgrade  atheros-firmware-0:20260110-1.fc42.noarch      Group           updates
  Upgrade  brcmfmac-firmware-0:20260110-1.fc42.noarch     Group           updates
  Upgrade  cirrus-audio-firmware-0:20260110-1.fc42.noarch Group           updates
  Upgrade  google-chrome-stable-0:144.0.7559.59-1.x86_64  External User   google-chrome
  Upgrade  intel-audio-firmware-0:20260110-1.fc42.noarch  Group           updates
  Upgrade  intel-gpu-firmware-0:20260110-1.fc42.noarch    Group           updates
  Upgrade  intel-vsc-firmware-0:20260110-1.fc42.noarch    Group           updates
  Upgrade  iwlegacy-firmware-0:20260110-1.fc42.noarch     Group           updates
  Upgrade  iwlwifi-dvm-firmware-0:20260110-1.fc42.noarch  Group           updates
  Upgrade  iwlwifi-mvm-firmware-0:20260110-1.fc42.noarch  Group           updates
  Upgrade  kernel-tools-0:6.18.5-100.fc42.x86_64          Weak Dependency updates
  Upgrade  kernel-tools-libs-0:6.18.5-100.fc42.x86_64     Dependency      updates
  Upgrade  kf6-kguiaddons-0:6.22.1-1.fc42.x86_64          External User   updates
  Upgrade  libertas-firmware-0:20260110-1.fc42.noarch     Group           updates
  Upgrade  linux-firmware-0:20260110-1.fc42.noarch        Group           updates
  Upgrade  mt7xxx-firmware-0:20260110-1.fc42.noarch       Group           updates
  Upgrade  nvidia-gpu-firmware-0:20260110-1.fc42.noarch   Group           updates
  Upgrade  nxpwireless-firmware-0:20260110-1.fc42.noarch  Group           updates
  Upgrade  plasma-activities-0:6.5.5-1.fc42.x86_64        External User   updates
  Upgrade  plasma-activities-stats-0:6.5.5-1.fc42.x86_64  External User   updates
  Upgrade  python3-perf-0:6.18.5-100.fc42.x86_64          Weak Dependency updates
  Upgrade  realtek-firmware-0:20260110-1.fc42.noarch      Group           updates
  Upgrade  tiwilink-firmware-0:20260110-1.fc42.noarch     Group           updates
  Remove   kernel-0:6.17.12-200.fc42.x86_64               User            @System
  Remove   kernel-core-0:6.17.12-200.fc42.x86_64          User            @System
  Remove   kernel-modules-0:6.17.12-200.fc42.x86_64       User            @System
  Remove   kernel-modules-core-0:6.17.12-200.fc42.x86_64  User            @System
  Remove   kernel-modules-extra-0:6.17.12-200.fc42.x86_64 User            @System
  Replaced amd-gpu-firmware-0:20251125-1.fc42.noarch      Group           @System
  Replaced amd-ucode-firmware-0:20251125-1.fc42.noarch    Group           @System
  Replaced atheros-firmware-0:20251125-1.fc42.noarch      Group           @System
  Replaced brcmfmac-firmware-0:20251125-1.fc42.noarch     Group           @System
  Replaced cirrus-audio-firmware-0:20251125-1.fc42.noarch Group           @System
  Replaced google-chrome-stable-0:143.0.7499.192-1.x86_64 External User   @System
  Replaced intel-audio-firmware-0:20251125-1.fc42.noarch  Group           @System
  Replaced intel-gpu-firmware-0:20251125-1.fc42.noarch    Group           @System
  Replaced intel-vsc-firmware-0:20251125-1.fc42.noarch    Group           @System
  Replaced iwlegacy-firmware-0:20251125-1.fc42.noarch     Group           @System
  Replaced iwlwifi-dvm-firmware-0:20251125-1.fc42.noarch  Group           @System
  Replaced iwlwifi-mld-firmware-0:20251125-1.fc42.noarch  Dependency      @System
  Replaced iwlwifi-mvm-firmware-0:20251125-1.fc42.noarch  Group           @System
  Replaced kernel-tools-0:6.18.4-100.fc42.x86_64          Weak Dependency @System
  Replaced kernel-tools-libs-0:6.18.4-100.fc42.x86_64     Dependency      @System
  Replaced kf6-kguiaddons-0:6.22.0-1.fc42.x86_64          External User   @System
  Replaced libertas-firmware-0:20251125-1.fc42.noarch     Group           @System
  Replaced linux-firmware-0:20251125-1.fc42.noarch        Group           @System
  Replaced linux-firmware-whence-0:20251125-1.fc42.noarch Dependency      @System
  Replaced mt7xxx-firmware-0:20251125-1.fc42.noarch       Group           @System
  Replaced nvidia-gpu-firmware-0:20251125-1.fc42.noarch   Group           @System
  Replaced nxpwireless-firmware-0:20251125-1.fc42.noarch  Group           @System
  Replaced plasma-activities-0:6.5.4-1.fc42.x86_64        External User   @System
  Replaced plasma-activities-stats-0:6.5.4-1.fc42.x86_64  External User   @System
  Replaced python3-perf-0:6.18.4-100.fc42.x86_64          Weak Dependency @System
  Replaced qcom-wwan-firmware-0:20251125-1.fc42.noarch    Dependency      @System
  Replaced realtek-firmware-0:20251125-1.fc42.noarch      Group           @System
  Replaced tiwilink-firmware-0:20251125-1.fc42.noarch     Group           @System

on 19/jan/2026:

Packages altered:
  Action   Package                                              Reason          Repository
  Upgrade  librsvg2-0:2.60.0-5.fc42.x86_64                      Group           updates
  Upgrade  rsvg-pixbuf-loader-0:2.60.0-5.fc42.x86_64            Dependency      updates
  Upgrade  perl-Business-ISBN-Data-0:20260109.001-1.fc42.noarch External User   updates
  Upgrade  python3-boto3-0:1.42.26-1.fc42.noarch                Weak Dependency updates
  Upgrade  python3-botocore-0:1.42.26-1.fc42.noarch             Dependency      updates
  Upgrade  rav1e-libs-0:0.8.1-2.fc42.x86_64                     Dependency      updates
  Upgrade  tcpdump-14:4.99.6-1.fc42.x86_64                      Group           updates
  Replaced librsvg2-0:2.60.0-2.fc42.x86_64                      Group           @System
  Replaced perl-Business-ISBN-Data-0:20250315.001-1.fc42.noarch External User   @System
  Replaced python3-boto3-0:1.42.25-1.fc42.noarch                Weak Dependency @System
  Replaced python3-botocore-0:1.42.25-1.fc42.noarch             Dependency      @System
  Replaced rav1e-libs-0:0.7.1-8.fc42.x86_64                     Dependency      @System
  Replaced rsvg-pixbuf-loader-0:2.60.0-2.fc42.x86_64            Dependency      @System
  Replaced tcpdump-14:4.99.5-4.fc42.x86_64                      Group           @System

on 20/jan/2026:

Packages altered:
  Action   Package                                                        Reason          Repository
  Upgrade  coreutils-0:9.6-7.fc42.x86_64                                  Group           updates
  Upgrade  coreutils-common-0:9.6-7.fc42.x86_64                           Dependency      updates
  Upgrade  desktop-backgrounds-gnome-0:42.0.0-3.fc42.noarch               Group           updates
  Upgrade  loupe-0:48.2-1.fc42.x86_64                                     Group           updates
  Upgrade  pipewire-0:1.4.10-1.fc42.x86_64                                Group           updates
  Upgrade  pipewire-libs-0:1.4.10-1.fc42.x86_64                           Dependency      updates
  Upgrade  pipewire-utils-0:1.4.10-1.fc42.x86_64                          Group           updates
  Upgrade  pipewire-pulseaudio-0:1.4.10-1.fc42.x86_64                     Group           updates
  Upgrade  pipewire-plugin-libcamera-0:1.4.10-1.fc42.x86_64               Weak Dependency updates
  Upgrade  pipewire-jack-audio-connection-kit-libs-0:1.4.10-1.fc42.x86_64 Dependency      updates
  Upgrade  pipewire-gstreamer-0:1.4.10-1.fc42.x86_64                      Group           updates
  Upgrade  pipewire-alsa-0:1.4.10-1.fc42.x86_64                           Group           updates
  Upgrade  pipewire-jack-audio-connection-kit-0:1.4.10-1.fc42.x86_64      Group           updates
  Replaced coreutils-0:9.6-6.fc42.x86_64                                  Group           @System
  Replaced coreutils-common-0:9.6-6.fc42.x86_64                           Dependency      @System
  Replaced desktop-backgrounds-gnome-0:42.0.0-2.fc42.noarch               Group           @System
  Replaced loupe-0:48.1-2.fc42.x86_64                                     Group           @System
  Replaced pipewire-0:1.4.9-1.fc42.x86_64                                 Group           @System
  Replaced pipewire-alsa-0:1.4.9-1.fc42.x86_64                            Group           @System
  Replaced pipewire-gstreamer-0:1.4.9-1.fc42.x86_64                       Group           @System
  Replaced pipewire-jack-audio-connection-kit-0:1.4.9-1.fc42.x86_64       Group           @System
  Replaced pipewire-jack-audio-connection-kit-libs-0:1.4.9-1.fc42.x86_64  Dependency      @System
  Replaced pipewire-libs-0:1.4.9-1.fc42.x86_64                            Dependency      @System
  Replaced pipewire-plugin-libcamera-0:1.4.9-1.fc42.x86_64                Weak Dependency @System
  Replaced pipewire-pulseaudio-0:1.4.9-1.fc42.x86_64                      Group           @System
  Replaced pipewire-utils-0:1.4.9-1.fc42.x86_64                           Group           @System

These are the specs of my computer:

Model: Dell Inspiron 7520
CPU: Intel® Core™ i7-3612QM × 8
RAM: 8 GB
iGPU: Intel® HD Graphics 4000 (IVB GT2)
dGPU: VERDE
Wifi controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)
Wired controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 07)

Reproducible: Always

Steps to Reproduce:
1. Run speedtest on https://www.speedtest.net/
Actual Results:
The download speed is between 10 Mbps and 30 Mbps at most, when it would normally be 750 Mbps. The upload speed is normal (230 Mbps).

Expected Results:
Download speed should be around 750 Mbps.

Additional Information:
Computer specs were provided at the end of the "Details" field.
Comment 1 Joao Carvalho 2026-01-24 22:15:23 UTC 
I upgraded to Fedora 43 and issue persists.
Comment 2 Joao Carvalho 2026-01-25 20:56:10 UTC 
I also tried "dnf downgrade realtek-firmware", but issue persists.

Packages altered:
  Action    Package                                        Reason     Repository
  Downgrade realtek-firmware-0:20251021-1.fc43.noarch      Group      fedora
  Downgrade linux-firmware-whence-0:20251021-1.fc43.noarch Dependency fedora
  Downgrade tiwilink-firmware-0:20251021-1.fc43.noarch     Group      fedora
  Downgrade qcom-wwan-firmware-0:20251021-1.fc43.noarch    Dependency fedora
  Downgrade nxpwireless-firmware-0:20251021-1.fc43.noarch  Group      fedora
  Downgrade nvidia-gpu-firmware-0:20251021-1.fc43.noarch   Group      fedora
  Downgrade mt7xxx-firmware-0:20251021-1.fc43.noarch       Group      fedora
  Downgrade linux-firmware-0:20251021-1.fc43.noarch        Group      fedora
  Downgrade libertas-firmware-0:20251021-1.fc43.noarch     Group      fedora
  Downgrade iwlwifi-mvm-firmware-0:20251021-1.fc43.noarch  Group      fedora
  Downgrade iwlwifi-mld-firmware-0:20251021-1.fc43.noarch  Dependency fedora
  Downgrade iwlwifi-dvm-firmware-0:20251021-1.fc43.noarch  Group      fedora
  Downgrade iwlegacy-firmware-0:20251021-1.fc43.noarch     Group      fedora
  Downgrade intel-vsc-firmware-0:20251021-1.fc43.noarch    Group      fedora
  Downgrade intel-gpu-firmware-0:20251021-1.fc43.noarch    Group      fedora
  Downgrade intel-audio-firmware-0:20251021-1.fc43.noarch  Group      fedora
  Downgrade cirrus-audio-firmware-0:20251021-1.fc43.noarch Group      fedora
  Downgrade brcmfmac-firmware-0:20251021-1.fc43.noarch     Group      fedora
  Downgrade atheros-firmware-0:20251021-1.fc43.noarch      Group      fedora
  Downgrade amd-ucode-firmware-0:20251021-1.fc43.noarch    Group      fedora
  Downgrade amd-gpu-firmware-0:20251021-1.fc43.noarch      Group      fedora
  Replaced  amd-gpu-firmware-0:20260110-1.fc43.noarch      Group      @System
  Replaced  amd-ucode-firmware-0:20260110-1.fc43.noarch    Group      @System
  Replaced  atheros-firmware-0:20260110-1.fc43.noarch      Group      @System
  Replaced  brcmfmac-firmware-0:20260110-1.fc43.noarch     Group      @System
  Replaced  cirrus-audio-firmware-0:20260110-1.fc43.noarch Group      @System
  Replaced  intel-audio-firmware-0:20260110-1.fc43.noarch  Group      @System
  Replaced  intel-gpu-firmware-0:20260110-1.fc43.noarch    Group      @System
  Replaced  intel-vsc-firmware-0:20260110-1.fc43.noarch    Group      @System
  Replaced  iwlegacy-firmware-0:20260110-1.fc43.noarch     Group      @System
  Replaced  iwlwifi-dvm-firmware-0:20260110-1.fc43.noarch  Group      @System
  Replaced  iwlwifi-mld-firmware-0:20260110-1.fc43.noarch  Dependency @System
  Replaced  iwlwifi-mvm-firmware-0:20260110-1.fc43.noarch  Group      @System
  Replaced  libertas-firmware-0:20260110-1.fc43.noarch     Group      @System
  Replaced  linux-firmware-0:20260110-1.fc43.noarch        Group      @System
  Replaced  linux-firmware-whence-0:20260110-1.fc43.noarch Dependency @System
  Replaced  mt7xxx-firmware-0:20260110-1.fc43.noarch       Group      @System
  Replaced  nvidia-gpu-firmware-0:20260110-1.fc43.noarch   Group      @System
  Replaced  nxpwireless-firmware-0:20260110-1.fc43.noarch  Group      @System
  Replaced  qcom-wwan-firmware-0:20260110-1.fc43.noarch    Dependency @System
  Replaced  realtek-firmware-0:20260110-1.fc43.noarch      Group      @System
  Replaced  tiwilink-firmware-0:20260110-1.fc43.noarch     Group      @System
Comment 3 Joao Carvalho 2026-01-30 21:05:45 UTC 
Since my /home folder was on a separate partition, I decided to reinstall Fedora to see what happened. During reinstall, I formatted the / and /boot partitions, but left the /home partition untouched.

This solved the problem. Even after updating all packages, the download speed was as expected (750 Mbps).

I tested this first with Fedora 42 and then with Fedora 43, and it worked with both.