Wifi suddenly drops on Ubuntu 22.04

Question

I did a fresh clean install of Ubuntu 22.04 and I am very new to Ubuntu/Linux Kernel. As a result the wifi on my system connects but keeps dropping even though I am sitting 6 feet across from the router. I have it installed on on my HP 15-db1xxx, when I boot up my system. Wifi on startup , the wifi signals initially are healthy but after 4-5 minutes Wifi signals after usage . The signal fluctuation happens when I am using the internet and I loose the connection, for instance, the pages will stop loading and I have keep hitting the refresh button until it starts working. This has become really annoying and has been blocking me at work. I have not encountered this problem with Windows 10 which is dual-booted alongside Ubuntu 22.04.

$ sudo lshw -C network
  *-network                 
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eno1
       version: 15
       serial: 00:68:eb:7c:74:81
       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=5.15.0-30-generic firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:40 ioport:3000(size=256) memory:c0904000-c0904fff memory:c0900000-c0903fff
  *-network
       description: Wireless interface
       product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlo1
       version: 00
       serial: c0:e4:34:57:65:97
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtw_8821ce driverversion=5.15.0-30-generic firmware=N/A ip=192.168.0.20 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:73 ioport:2000(size=256) memory:c0800000-c080ffff

Here is the PCI information about my computer

sudo lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
04:00.0 Non-Volatile memory controller: Silicon Motion, Inc. SM2263EN/SM2263XT SSD Controller (rev 03)
05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso/Raven 2 [Radeon Vega Series / Radeon Vega Mobile Series] (rev c2)
05:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
05:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
05:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
05:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
05:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor
05:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller
05:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver

Here is the laptop information that might help:

sudo lshw -C system
salman-ryzen                
    description: Notebook
    product: HP Laptop 15-db1xxx (8LX89PA#ABJ)
    vendor: HP
    version: Type1ProductConfigId
    serial: CND9461SXT
    width: 64 bits
    capabilities: smbios-3.1.1 dmi-3.1.1 smp vsyscall32
    configuration: boot=normal chassis=notebook family=103C_5335KV HP Notebook sku=8LX89PA#ABJ uuid=64de2ba6-0a01-ea11-8102-0068eb7c7481
  *-pnp00:00
       product: PnP device PNP0c02
       physical id: 0
       capabilities: pnp
       configuration: driver=system
  *-pnp00:01
       product: PnP device PNP0b00
       physical id: 1
       capabilities: pnp
       configuration: driver=rtc_cmos
  *-pnp00:04
       product: PnP device PNP0c02
       physical id: 4
       capabilities: pnp
       configuration: driver=system
  *-pnp00:05
       product: PnP device PNP0c01
       physical id: 5
       capabilities: pnp
       configuration: driver=system

This problem is driving me insane and disturbing the workflow. This problem never occurs on Windows 10. I have tried cloning https://github.com/tomaspinho/rtl8821ce for the Wifi driver and installed it, but this did not work either.

I have also tried these solutions Ubuntu 22.04 LTS Wi-Fi Frequent Disconnection WiFi randomly disconnected on Ubuntu 18.04 LTS

And they have not worked for me. Please help!

EDIT: So I uninstalled Ubuntu 22.04 and did a clean install of MX-Linux 21 with Kernel 5.10-14, and the wifi is working flawlessly. That problem has long gone but I think we will have to report this bug on the newer kernels. I tried updating kernels on Ubuntu form 5.15 to 5.17, but no luck! Anyways, I think Ubuntu 22.04 is still fairly new and Canonical is working on fixing the bugs. Thanks for the help guys, really appreciate it.

score 0 · Answer 1 · answered May 26 '22 at 01:15

0

It's not your imagination. Many of us have the same issue. See this post:

Wifi disconnects intermittently

answered May 26 '22 at 01:15

Elven Decker

1

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center. – Community May 28 '22 at 06:52
How does this answer the question? – Esther Jun 03 '22 at 13:30

score 0 · Answer 2 · answered Jun 03 '22 at 13:36

0

The problem here is that older kernels did not have a driver for this wifi card at all, while newer kernels (5.15+) have a built-in driver that isn't very good. Therefore, if you tried to install your own, better driver, it would conflict with the built-in one and cause even more problems.

The solution is to blacklist the built-in driver from the newer kernels, and install your own. See the steps here

answered Jun 03 '22 at 13:36

Esther

3,600
13
29

I am running MX-Linux with 5.10 kernel. It is working fine and never skips a beat. Thanks for the help though! Will try installing Ubuntu and try your solution. – Salman Ahmed Jun 14 '22 at 18:13

Wifi suddenly drops on Ubuntu 22.04

2 Answers2