My desired network is sadly still not detected. Not sure why.

iwlist wlo1 freq
wlo1      32 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz
          Channel 36 : 5.18 GHz
          Channel 40 : 5.2 GHz
          Channel 44 : 5.22 GHz
          Channel 48 : 5.24 GHz
          Channel 52 : 5.26 GHz
          Channel 56 : 5.28 GHz
          Channel 60 : 5.3 GHz
          Channel 64 : 5.32 GHz
          Channel 100 : 5.5 GHz
          Channel 104 : 5.52 GHz
          Channel 108 : 5.54 GHz
          Channel 112 : 5.56 GHz
          Channel 116 : 5.58 GHz
          Channel 120 : 5.6 GHz
          Channel 124 : 5.62 GHz
          Channel 128 : 5.64 GHz
          Channel 132 : 5.66 GHz
          Channel 136 : 5.68 GHz
          Channel 140 : 5.7 GHz
          Current Frequency:2.437 GHz (Channel 6)



iw list
Wiphy phy0
        max # scan SSIDs: 9
        max scan IEs length: 2304 bytes
        max # sched scan SSIDs: 0
        max # match sets: 0
        max # scan plans: 1
        max scan plan interval: -1
        max scan plan iterations: 0
        Retry short limit: 7
        Retry long limit: 4
        Coverage class: 0 (up to 0m)
        Supported Ciphers:
                * WEP40 (00-0f-ac:1)
                * WEP104 (00-0f-ac:5)
                * TKIP (00-0f-ac:2)
                * CCMP-128 (00-0f-ac:4)
        Available Antennas: TX 0 RX 0
        Supported interface modes:
                 * IBSS
                 * managed
                 * AP
        Band 1:
                Capabilities: 0x1962
                        HT20/HT40
                        Static SM Power Save
                        RX HT20 SGI
                        RX HT40 SGI
                        RX STBC 1-stream
                        Max AMSDU length: 7935 bytes
                        DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: 16 usec (0x07)
                HT Max RX data rate: 150 Mbps
                HT TX/RX MCS rate indexes supported: 0-7
                Bitrates (non-HT):
                        * 1.0 Mbps
                        * 2.0 Mbps
                        * 5.5 Mbps
                        * 11.0 Mbps
                        * 6.0 Mbps
                        * 9.0 Mbps
                        * 12.0 Mbps
                        * 18.0 Mbps
                        * 24.0 Mbps
                        * 36.0 Mbps
                        * 48.0 Mbps
                        * 54.0 Mbps
                Frequencies:
                        * 2412 MHz [1] (20.0 dBm)
                        * 2417 MHz [2] (20.0 dBm)
                        * 2422 MHz [3] (20.0 dBm)
                        * 2427 MHz [4] (20.0 dBm)
                        * 2432 MHz [5] (20.0 dBm)
                        * 2437 MHz [6] (20.0 dBm)
                        * 2442 MHz [7] (20.0 dBm)
                        * 2447 MHz [8] (20.0 dBm)
                        * 2452 MHz [9] (20.0 dBm)
                        * 2457 MHz [10] (20.0 dBm)
                        * 2462 MHz [11] (20.0 dBm)
                        * 2467 MHz [12] (20.0 dBm) (no IR)
                        * 2472 MHz [13] (20.0 dBm) (no IR)
                        * 2484 MHz [14] (disabled)
        Band 2:
                Capabilities: 0x1862
                        HT20/HT40
                        Static SM Power Save
                        RX HT20 SGI
                        RX HT40 SGI
                        No RX STBC
                        Max AMSDU length: 7935 bytes
                        DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: 16 usec (0x07)
                HT Max RX data rate: 150 Mbps
                HT TX/RX MCS rate indexes supported: 0-7
                VHT Capabilities (0x03c00120):
                        Max MPDU length: 3895
                        Supported Channel Width: neither 160 nor 80+80
                        short GI (80 MHz)
                        +HTC-VHT
                VHT RX MCS set:
                        1 streams: MCS 0-9
                        2 streams: not supported
                        3 streams: not supported
                        4 streams: not supported
                        5 streams: not supported
                        6 streams: not supported
                        7 streams: not supported
                        8 streams: not supported
                VHT RX highest supported: 434 Mbps
                VHT TX MCS set:
                        1 streams: MCS 0-9
                        2 streams: not supported
                        3 streams: not supported
                        4 streams: not supported
                        5 streams: not supported
                        6 streams: not supported
                        7 streams: not supported
                        8 streams: not supported
                VHT TX highest supported: 434 Mbps
                Bitrates (non-HT):
                        * 6.0 Mbps
                        * 9.0 Mbps
                        * 12.0 Mbps
                        * 18.0 Mbps
                        * 24.0 Mbps
                        * 36.0 Mbps
                        * 48.0 Mbps
                        * 54.0 Mbps
                Frequencies:
                        * 5180 MHz [36] (30.0 dBm)
                        * 5200 MHz [40] (30.0 dBm)
                        * 5220 MHz [44] (30.0 dBm)
                        * 5240 MHz [48] (30.0 dBm)
                        * 5260 MHz [52] (30.0 dBm) (no IR, radar detection)
                        * 5280 MHz [56] (30.0 dBm) (no IR, radar detection)
                        * 5300 MHz [60] (30.0 dBm) (no IR, radar detection)
                        * 5320 MHz [64] (30.0 dBm) (no IR, radar detection)
                        * 5500 MHz [100] (30.0 dBm) (no IR, radar detection)
                        * 5520 MHz [104] (30.0 dBm) (no IR, radar detection)
                        * 5540 MHz [108] (30.0 dBm) (no IR, radar detection)
                        * 5560 MHz [112] (30.0 dBm) (no IR, radar detection)
                        * 5580 MHz [116] (30.0 dBm) (no IR, radar detection)
                        * 5600 MHz [120] (30.0 dBm) (no IR, radar detection)
                        * 5620 MHz [124] (30.0 dBm) (no IR, radar detection)
                        * 5640 MHz [128] (30.0 dBm) (no IR, radar detection)
                        * 5660 MHz [132] (30.0 dBm) (no IR, radar detection)
                        * 5680 MHz [136] (30.0 dBm) (no IR, radar detection)
                        * 5700 MHz [140] (30.0 dBm) (no IR, radar detection)
                        * 5720 MHz [144] (disabled)
                        * 5745 MHz [149] (30.0 dBm)
                        * 5765 MHz [153] (30.0 dBm)
                        * 5785 MHz [157] (30.0 dBm)
                        * 5805 MHz [161] (30.0 dBm)
                        * 5825 MHz [165] (30.0 dBm)
                        * 5845 MHz [169] (disabled)
                        * 5865 MHz [173] (disabled)
                        * 5885 MHz [177] (disabled)
        Supported commands:
                 * new_interface
                 * set_interface
                 * new_key
                 * start_ap
                 * new_station
                 * set_bss
                 * join_ibss
                 * set_pmksa
                 * del_pmksa
                 * flush_pmksa
                 * remain_on_channel
                 * frame
                 * set_channel
                 * connect
                 * disconnect
        Supported TX frame types:
                 * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 
0xb0 0xc0 0xd0 0xe0 0xf0
                 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 
0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 
0xb0 0xc0 0xd0 0xe0 0xf0
                 * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 
0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 
0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 
0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
        Supported RX frame types:
                 * IBSS: 0xd0
                 * managed: 0x40 0xd0
                 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
                 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
                 * P2P-client: 0x40 0xd0
                 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
        WoWLAN support:
                 * wake up on anything (device continues operating normally)
        software interface modes (can always be added):
        interface combinations are not supported
        Device supports scan flush.
        Supported extended features:


dmesg |grep -i firm
[    0.149836] Spectre V2 : Enabling Restricted Speculation for firmware calls
[    7.976573] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin 
(v1.4)
steven@swiffundweg:~$ dmesg | grep 8821
[    7.903216] rtl8821ce: loading out-of-tree module taints kernel.
[    7.917660] rtl8821ce: module verification failed: signature and/or required 
key missing - tainting kernel
[    8.254144] rtl8821ce 0000:02:00.0 wlo1: renamed from wlan0
[  274.050627] Modules linked in: overlay ashmem_linux(CE) binder_linux 
xt_CHECKSUM iptable_mangle xt_tcpudp xt_MASQUERADE xt_comment iptable_nat 
nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c bridge stp llc 
iptable_filter bpfilter snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda 
snd_sof_intel_hda x86_pkg_temp_thermal snd_sof_intel_byt intel_powerclamp 
snd_sof_intel_ipc snd_sof coretemp snd_sof_xtensa_dsp mei_hdcp 
snd_hda_codec_hdmi intel_rapl_msr snd_hda_ext_core snd_soc_acpi_intel_match 
snd_soc_acpi snd_soc_core snd_compress snd_hda_codec_realtek 
snd_hda_codec_generic ac97_bus snd_pcm_dmaengine ledtrig_audio kvm 
snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm 
snd_seq_midi crct10dif_pclmul snd_seq_midi_event ghash_clmulni_intel 
snd_rawmidi uvcvideo snd_seq i915 videobuf2_vmalloc videobuf2_memops 
videobuf2_v4l2 videobuf2_common aesni_intel snd_seq_device snd_timer videodev 
crypto_simd cryptd mc rtl8821ce(OE) snd drm_kms_helper glue_helper joydev
[  301.701538] Modules linked in: overlay ashmem_linux(CE) binder_linux 
xt_CHECKSUM iptable_mangle xt_tcpudp xt_MASQUERADE xt_comment iptable_nat 
nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c bridge stp llc 
iptable_filter bpfilter snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda 
snd_sof_intel_hda x86_pkg_temp_thermal snd_sof_intel_byt intel_powerclamp 
snd_sof_intel_ipc snd_sof coretemp snd_sof_xtensa_dsp mei_hdcp 
snd_hda_codec_hdmi intel_rapl_msr snd_hda_ext_core snd_soc_acpi_intel_match 
snd_soc_acpi snd_soc_core snd_compress snd_hda_codec_realtek 
snd_hda_codec_generic ac97_bus snd_pcm_dmaengine ledtrig_audio kvm 
snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm 
snd_seq_midi crct10dif_pclmul snd_seq_midi_event ghash_clmulni_intel 
snd_rawmidi uvcvideo snd_seq i915 videobuf2_vmalloc videobuf2_memops 
videobuf2_v4l2 videobuf2_common aesni_intel snd_seq_device snd_timer videodev 
crypto_simd cryptd mc rtl8821ce(OE) snd drm_kms_helper glue_helper joydev

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https://bugs.launchpad.net/bugs/1861278

Title:
  RTL8821CE - 5GHZ networks not working

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