Slow wifi

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55 Mbps

3.21 Mbps

My wifi was very slow and i was thinking about changing my network adapter. But first i’ve looked to the characteristics of my current network card :

# lspci
01:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter

After some research it can go up to 433Mbps, maybe the problem is somewhere else. I’ve found that the manufacturer has made some drivers for linux.

paru -Ss rtl8821ce
aur/rtl8821ce-dkms-git 1.0.5.r36.gca4abd8-1 [+36 ~0.00] [Installés : 1.0.5.r176.g1bbfc35-1]
    rtl8821CE driver with firmware

Here are the steps to install them :

  • Install the driver from the AUR repository (i use paru but you can use yay or any other method)

paru -S rtl8821ce-dkms-git
  • Blacklist the kernel driver

#/etc/modprobre.d/blacklist.conf
#blacklist the wifi builtin kernel driver
blacklist rtw88_8821ce
  • Reboot

  • Results :

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108 Mbps

26.79 Mbps

And near the router :

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214.09 Mbps

275.08 Mbps


MG1

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2025-03-23 14:21 +0100

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