Finding wifi is unstable in this release

[Russell Harper]

After a recent upgrade noticing wifi disconnects randomly, speeds vary back and forth from 0.1Mbps to 100Mbps within a few seconds, can be up for a few seconds, or a few hours, not predictable.

This might be some relevant information, but I looked through the modules and don't see anything like `rtw_8821ce`, there are `rtw88_*` modules which might be relevant, but in any case I can't map these to any packages as far as I can tell.

```
Distributor ID: Ubuntu
Description: Ubuntu 23.10
Release: 23.10
Codename: mantic
```

```
  *-network
       description: Wireless interface
       product: Realtek Semiconductor Co., Ltd.
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 00
       serial: b4:b0:24:d4:d7:ea
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtw_8821ce driverversion=6.5.0-15-generic firmware=N/A ip=192.168.2.52 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:33 ioport:e000(size=256) memory:f7c00000-f7c0ffff
```

```
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b821
        Subsystem: Realtek Semiconductor Co., Ltd. Device b821
        Flags: bus master, fast devsel, latency 0, IRQ 33
        I/O ports at e000 [size=256]
        Memory at f7c00000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [148] Device Serial Number 00-e0-4c-ff-fe-c8-21-01
        Capabilities: [158] Latency Tolerance Reporting
        Capabilities: [160] L1 PM Substates
        Capabilities: [170] Precision Time Measurement
        Capabilities: [17c] Vendor Specific Information: ID=0003 Rev=1 Len=054 <?>
        Kernel driver in use: rtw_8821ce
        Kernel modules: rtw88_8821ce
```

This was the best reference I can find: [WiFi frequently and randomly disconnects, rtw_8821ce driver][1], but even though it's in the "Newbie Corner" section, I'm not able to follow what they're doing. Like "Have you tried connecting with just wpa_supplicant (and a DHCP client if needed)?" is way over my skill level.

----

This is the relevant output from `iwconfig`, I had just rebooted, as that sometimes helps for a bit, so the stats might not be representative:

```
wlp2s0 IEEE 802.11 ESSID:"************"
          Mode:Managed Frequency:5.785 GHz Access Point: 0E:**:**:**:**:0F
          Bit Rate=13 Mb/s Tx-Power=30 dBm
          Retry short limit:7 RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=50/70 Signal level=-60 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:92 Invalid misc:0 Missed beacon:0
```

----

And another output a few minutes later:

```
wlp2s0 IEEE 802.11 ESSID:"************"
          Mode:Managed Frequency:2.412 GHz Access Point: 0C:**:**:**:**:0D
          Bit Rate=58.5 Mb/s Tx-Power=30 dBm
          Retry short limit:7 RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=62/70 Signal level=-48 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:9 Invalid misc:1 Missed beacon:0
```

----

And after a few hours, note the speed looks really good, but the connection isn't working. I'm running off a hot spot now.

```
wlp2s0 IEEE 802.11 ESSID:"************"
          Mode:Managed Frequency:5.785 GHz Access Point: 0E:**:**:**:**:0F
          Bit Rate=175.5 Mb/s Tx-Power=30 dBm
          Retry short limit:7 RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=39/70 Signal level=-71 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:146 Invalid misc:66 Missed beacon:0
```

  [1]: https://bbs.archlinux.org/viewtopic.php?id=273440

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: linux-image-6.5.0-15-generic 6.5.0-15.15
ProcVersionSignature: Ubuntu 6.5.0-15.15-generic 6.5.3
Uname: Linux 6.5.0-15-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: russell 1179 F.... wireplumber
 /dev/snd/controlC1: russell 1179 F.... wireplumber
 /dev/snd/controlC0: russell 1179 F.... wireplumber
 /dev/snd/seq: russell 1176 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: unknown
CurrentDesktop: LXQt
Date: Sun Jan 28 21:48:23 2024
InstallationDate: Installed on 2023-06-23 (219 days ago)
InstallationMedia: Lubuntu 23.04 "Lunar Lobster" - Release amd64 (20230417)
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-15-generic root=UUID=ff2b9230-f3ac-4af5-ae27-88eae14765d1 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-6.5.0-15-generic N/A
 linux-backports-modules-6.5.0-15-generic N/A
 linux-firmware 20230919.git3672ccab-0ubuntu2.5
SourcePackage: linux
UpgradeStatus: Upgraded to mantic on 2024-01-26 (3 days ago)
dmi.bios.date: 05/09/2017
dmi.bios.release: 2.71
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L01 v02.71
dmi.board.asset.tag: 2UA4101ZMS
dmi.board.name: 18E7
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: 2UA4101ZMS
dmi.chassis.type: 4
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrL01v02.71:bd05/09/2017:br2.71:svnHewlett-Packard:pnHPProDesk600G1SFF:pvr:rvnHewlett-Packard:rn18E7:rvr:cvnHewlett-Packard:ct4:cvr:skuE3S71UT#ABA:
dmi.product.family: 103C_53307F G=D
dmi.product.name: HP ProDesk 600 G1 SFF
dmi.product.sku: E3S71UT#ABA
dmi.sys.vendor: Hewlett-Packard

[Russell Harper (russell-s-harper)]

Research on StackOverflow suggested to restrict to just the 2.4GHz band because they noticed the issues might arise from switching bands. I did that but still seeing the connections drop randomly.