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This is my first Raspberry Pi, I'm wondering why it can't connect to my wifi AC network when the specification clearly states it can. I have tried editing the wpa_supplicant.conf file to no avail. Any ideas?

EDIT: Here is the stuff I gathered below:

wpa_supplicant:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=CA

network={
    ssid="ROGERS...-5G"
    psk="..."
    key_mgmt=WPA-PSK
}

network={
    ssid="ROGERS...-5G"
    psk="..."
    key_mgmt=WPA-PSK
    disabled=1
}

network={
    ssid="ROGERS..."
    psk="..."
    key_mgmt=WPA-PSK
    disabled=1
}

dmesg Red:

[    4.448389] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    4.448771] usbcore: registered new interface driver brcmfmac
[    4.490513] [drm] Initialized v3d 1.0.0 20180419 for fec00000.v3d on minor 1
[    4.678114] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    4.694161] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: May  2 2019 02:46:17 version 7.45.189 (r714228 CY) FWID 01-e1db26e2
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  • Have you set your local country code in your supplicant file? Post the contents of your supplicant file on here (with the password redacted). – Dougie Oct 13 '19 at 21:24
  • Hi I have just added my edits – biotecher Oct 13 '19 at 21:46
  • As per this thread: raspberrypi.org/forums/viewtopic.php?p=1503660 It seems like I may have a defective Pi – biotecher Oct 13 '19 at 21:48
  • What do you see with systemctl status wpa_supplicant.service why the connection fails? – Ingo Oct 13 '19 at 22:22
  • Wire it to your router and run sudo apt update && sudo apt dist-upgrade -y. That will get the new drivers for WiFi on a RPi4B. – Dougie Oct 14 '19 at 0:11
1

Had the same issue when I changed 5Ghz spec on my router to support AC only. After a lot of digging around, finally found that it works if I set the country to (BO) Bolivia. I don’t know why it works. But I am now able to connect to 5Ghz in ac only mode.

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