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Can connect to guest wireless network but not home network on same router

us flag

I installed a dual-boot of Ubuntu 20.04 alongside Windows 10 on my ThinkPad X1 Carbon Gen 4.

Router: ASUS RT-AC68U firmware 3.0.0.4.386_45987 (Mesh network with one router and one node)

I can connect to my Guest WiFi network (No NAS, printer, or device access), but cannot connect to my primary Home Network.

nmcli d wifi connect HomeNetwork5G password <Home network password> (as well as HomeNetwork24G) gets:

Error: Connection activation failed: (53) The Wi-Fi network could not be found.

nmcli d wifi connect GuestNetwork password <Guest network password> gets:

Device 'wlp4s0' successfully activated with 'some-converted-guestnetwork-password'.

nmcli d wifi list gets:

IN-USE  BSSID              SSID                              MODE   CHAN  RATE >
        04:D9:F5:77:FA:99  HomeNetwork24G                    Infra  11    195 M>
        04:D9:F5:77:FA:9C  HomeNetwork5G                     Infra  153   195 M>
*       62:45:B1:C1:D0:DC  GuestNetwork                      Infra  11    195 M>

All three are WPA1 WPA2

lspci gets:

00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection I219-LM (rev 21)
04:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)

sudo lshw -c network gets:

*-network                 
       description: Wireless interface
       product: Wireless 8260
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlp4s0
       version: 3a
       serial: e4:b3:18:7b:3b:99
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=5.11.0-43-generic firmware=36.77d01142.0 8000C-36.ucode latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:135 memory:f1100000-f1101fff
  *-network
       description: Ethernet interface
       product: Ethernet Connection I219-LM
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 21
       serial: 54:ee:75:a0:55:1e
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=5.11.0-43-generic firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:124 memory:f1300000-f131ffff

rfkill list gets:

0: tpacpi_bluetooth_sw: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

Things I have tried.

Password error mitigation (multiple times):

  • Copying the password from a source that works on another device
  • Manually typing the password
  • Having another person type the password to reduce operator error risk

Windows dual-boot mitigation:

  • Uninstalled Intel Corporation Wireless 8260 and drivers from Windows 10
  • Turned off all WoL options in Lenovo BIOS
  • Turned off Windows 10 "Quick Start"
  • Shutdown Windows 10 via cmd with shutdown /s /f /t 0

Asus Router mitigation:

  • Checked for most up-to-date Firmware
  • Rebooted multiple times
  • Unplugged all AiMesh nodes and rebooted main router trying one router only
  • Tried switching the networks to WPA2 only

I feel like I have searched this to death but every answer seems to be over six years old and involve ifconfig which has been deprecated as I understand. I am dead out of ideas and feel like I've hit bedrock.

us flag
Five days and many reboots later the problem still persists. If I cannot connect to my networked devices Ubuntu is not going to be very useful to me. Any ideas?
us flag
I still have not solved the problem, but the cause is apparently not Ubuntu. I removed Ubuntu and replaced with with openSUSE and the same problem persists in openSUSE as well.
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