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The following is part of the output shown from the lshw -C network command. The wireless adapter is seen by the OS but it seems that the drivers are not working. I tried installing the driver but to no avail.

*-network UNCLAIMED
description: Network controller
product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: cap_list
configuration: latency=0
resources: ioport:3000(size=256) memory:b1000000-b100ffff

Please, any idea on how to solve this issue in Ubuntu 19.04.I had this same issue while using 18.04 and managed to solve it. But when i just upgraded to 19.04, the issue started but the previous solution seems not to be working this time.

solsTiCe
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Keno
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3 Answers3

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For kernel version >= 5.0 the ok_access function supports only two parameters, while for earlier kernel versions 4.* or less it has three parameters. Try the below code with updated parameters 

git clone https://github.com/shubham151/rtl8821ce.git
cd rtl8821ce
sudo make all
sudo make install
sudo modprobe -a 8821ce
Zanna
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Shubham Mishra
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  • This worked for a while on my Ubuntu 18.04 LTS, and 19.10 but later the wireless connection had vert poor signal receptions even though the wireless router is close by. – Keno Aug 01 '20 at 11:35
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try the answer on askubuntu, mine worked for rtl8723ae after i ran the 3 commands. I've substituted yours ...

sudo -i
echo "options rtl8821ce msi=1"  >  /etc/modprobe.d/rtl8821ce.conf
exit
johnfidel
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    Keno has RTL8821CE card but it seems that commands you provided are for RTL8723AE. – Kulfy Apr 21 '19 at 17:21
  • Thanks guys for the solutions offered. Now after a fresh installation of another Ubuntu 18.04, the results were awesome. I did not have to even do a reboot before the wireless adapter came up. The result of the command lshw -C network is now: *-network description: Wireless interface product: RTL8821CE 802.11ac PCIe Wireless Network Adapter vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: wlo1 version: 00 – Keno Dec 08 '19 at 20:58
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For updates:

sudo apt install git
git clone https://github.com/shubham151/rtl8821ce.git
cd rtl8821ce
sudo apt install gcc
sudo apt install make
sudo make all
sudo make install
sudo modprobe -a 8821ce
sudo -i
echo "options rtl8821ce msi=1"  >  /etc/modprobe.d/rtl8821ce.conf
Rhoan Bundalian
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