Slow WiFi download speeds for network adapter RTL8852BE

I have 1 gbps network but my download speeds are terrible since I installed Zorin on my Lenova Ideal pad 5


I have tried so much tinkering that now I'm just going to ask Zorin developers to produce a fix. Will you please fix this please?

Hello and welcome,
Try this

sudo nano /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf

and set

wifi.powersave = 2

Ctrl+X , then Y , then Enter

sudo systemctl restart NetworkManager

and test

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If you have a Dualboot with Windows please disable fast startup at Windows power management.

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Also, please show the terminal output of

sudo lshw -C network

It could be a driver needs to be replaced.

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Welcome to the Forum!

Are Secure Boot and Fast Boot in BIOS disabled? Is this a fresh Install? Or do You use Zorin already a While and this Issue is new?

*-network
description: Wireless interface
product: RTL8852BE PCIe 802.11ax Wireless Network Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlp1s0
version: 00
serial: 9c:2f:9d:b2:c3:db
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtw89_8852be driverversion=6.17.0-35-generic firmware=N/A ip=10.0.0.147 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:77 ioport:2000(size=256) memory:fd600000-fd6fffff

One of the first things I tried. Thank you. But it didn't do anything.

It's a fresh install on a previous windows 11 laptop. Secure boot is disabled.I don't know about Fast boot. But on Win 11 the speed was what it should be 800mbps around.

It's not a dualboot.

Found here

Try this

echo “options rtw89_8852be_git disable_ps_mode=y disable_aspm=y” | sudo tee /etc/modprobe.d/rtw89.conf
sudo systemctl restart NetworkManager

I tried but the speed is still the same. Thanks for trying.

could you give us the result of

dpkg --list | grep linux-image | awk '{print $2}'

linux-image-6.17.0-20-generic
linux-image-6.17.0-35-generic
linux-image-generic-hwe-24.04

output of this please

sudo grep -E "submenu '|menuentry '" /boot/grub/grub.cfg | cut -d"'" -f2

Zorin OS
Advanced options for Zorin OS
Zorin OS, with Linux 6.17.0-35-generic
Zorin OS, with Linux 6.17.0-35-generic (recovery mode)
Zorin OS, with Linux 6.17.0-20-generic
Zorin OS, with Linux 6.17.0-20-generic (recovery mode)
UEFI Firmware Settings

We gonna try to reboot with an older kernel, do this

sudo grub-reboot "Advanced options for Zorin OS>Zorin OS, with Linux 6.17.0-20-generic"
sudo reboot

That could be something. There is nor Firmware loaded. Driver and Kernel are.

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Still the same results with the generic. :disappointed_face:

How do you add the firmware to this network adapter.

ok so we will try to upgrade to liquorix kernel

tutorial from @Aravisian

To use the Liquorix kernel:

Add repository

sudo add-apt-repository ppa:damentz/liquorix

Update sources and install:

sudo apt update && sudo apt install linux-image-liquorix-amd64

Reboot

1 Like