SLOWER Ethernet connection on Fedora 37 rather than Windows 10

Hi, installed Fedora 37 few weeks ago, i’m using ethernet connection and it’s really slower than in Windows 10 (was about 1Gbit/s, now about 100Mbit/s)
What can I do about it?

If you give us the hardware specs we might can recommend a driver where is available for your hardware.

lshw -C network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eno1
       version: 15
       serial: 88:a4:c2:d6:6d:a0
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=6.2.9-200.fc37.x86_64 duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip= latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:55 ioport:1000(size=256) memory:d1604000-d1604fff memory:d1600000-d1603fff
       description: Wireless interface
       product: MT7921 802.11ax PCI Express Wireless Network Adapter
       vendor: MEDIATEK Corp.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlp4s0
       version: 00
       serial: 5a:71:d5:9a:6e:65
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=mt7921e driverversion=6.2.9-200.fc37.x86_64 firmware=____010000-20230302150956 latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: iomemory:fc0-fbf iomemory:fc0-fbf iomemory:fc0-fbf irq:76 memory:fc02000000-fc020fffff memory:fc02100000-fc02103fff memory:fc02104000-fc02104fff

I do have the same adapter in my system and I can confirm that I always had problems with it.
It seam that it uses an opensource driver who not works so well. But there is a closed source drive who works better. Unfortunately I do not know how to fix. I do have a second adapter who works better so I not use the RTL adapter.

You might can have a look if the card works better with an LTS kernel:

kwizart/kernel-longterm-5.15 Copr

If this works, you have a fallback while the newest kernel makes trouble.


updated driver, ethernet still around 100 MBit/s, sometimes a little bit more

You mean you installed the LTS kernel? If just the driver do you have a link?

yeah, sorry i installed LTS Kernel

Also a little update, the upload speed is alright, but the download one is small

But speed-test is not a good reference. As soon as you leave the providers network you will get whatever you are connected with.

You have to measure in your local network. Coping from one computer to a other one. Important is that both devices are transmit and receive with 1GB. If you work with gnome you can install a extension who measures the speed.

oh, okay. but i wont be able to do it in the nearest time, my second laptop is not at home so i’ll need to grab it.
i’ll try it and then will tell you the results, thx

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