I upgraded to Ubuntu 20.04 LTS from Kubuntu 18.04 with a clean install (still dual boot with Windows 10). I can see my network with the correct SSID, but when I try connecting, it never authenticates and keeps asking for the password which I am 100% sure is entered correctly.
I can however, connect to my mobile hotspot wireless.
Linux mthiagar-ThinkPad-T440s 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
dmesg | grep iwl
[ 4.444541] Loading modules backported from iwlwifi [ 4.444542] iwlwifi-stack-public:master:8324:9176b151 [ 4.582977] iwlwifi 0000:03:00.0: Direct firmware load for iwl-dbg-cfg.ini failed with error -2 [ 4.586206] iwlwifi 0000:03:00.0: loaded firmware version 17.bfb58538.0 7260-17.ucode op_mode iwlmvm [ 4.586243] iwlwifi 0000:03:00.0: Direct firmware load for iwl-debug-yoyo.bin failed with error -2 [ 4.654758] iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144 [ 4.678917] iwlwifi 0000:03:00.0: base HW address: e8:2a:ea:73:8c:32 [ 4.895628] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' [ 5.308224] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0
lspci -knn | grep Net -A3; rfkill list
03:00.0 Network controller : Intel Corporation Wireless 7260 [8086:08b2] (rev 83) Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c270] Kernel driver in use: iwlwifi Kernel modules: iwlwifi 0: tpacpi_bluetooth_sw: Bluetooth Soft blocked: no Hard blocked: no 1: hci0: Bluetooth Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no
I'm not an advanced user by any means, so I've only tried the following from reading other threads:
forgetting the network and reconnecting, unchecking connect automatically, and entering the password into the security tab under configuration
reinstalling iwlwifi using
sudo apt install backport-iwlwifi-dkms
sudo service network-manager restart
Any ideas on what may be wrong, and what else I should try?
Let me know if more info is needed.