Gfilui

The 7265AC wifi module does not connect in Ubuntu 17.10. I've updated the drivers, but it's still not connected, neither bluetooth. Why?

some outputs:

$ lspci -nnk | grep 0280 -A3
02:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095a] (rev 59)
 Subsystem: Intel Corporation Dual Band Wireless-AC 7265 [8086:5010]
 Kernel driver in use: iwlwifi
 Kernel modules: iwlwifi

$ rfkill list
0: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
1: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no

$ iwconfig
wlp2s0 IEEE 802.11 ESSID:off/any 
 Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm 
 Retry short limit:7 RTS thr:off Fragment thr:off
 Power Management:on

lo no wireless extensions.

enp1s0 no wireless extensions.

$ dmesg | grep iwl
[ 3.736393] iwlwifi 0000:02:00.0: enabling device (0100 -> 0102)
[ 3.743942] iwlwifi 0000:02:00.0: loaded firmware version 29.610311.0 op_mode iwlmvm
[ 3.765152] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
[ 3.783239] iwlwifi 0000:02:00.0: base HW address: e4:42:a6:3b:0c:8b
[ 3.851759] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 3.955842] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0

$ ifconfig -a
enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
 inet 192.168.1.110 netmask 255.255.255.0 broadcast 192.168.1.255
 inet6 fe80::f2ae:7543:fb54:a383 prefixlen 64 scopeid 0x20<link>
 ether 3c:52:82:99:88:9e txqueuelen 1000 (Ethernet)
 RX packets 80948 bytes 110611689 (110.6 MB)
 RX errors 0 dropped 0 overruns 0 frame 0
 TX packets 42284 bytes 4334915 (4.3 MB)
 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
 inet 127.0.0.1 netmask 255.0.0.0
 inet6 ::1 prefixlen 128 scopeid 0x10<host>
 loop txqueuelen 1000 (Loopback Local)
 RX packets 1920 bytes 177354 (177.3 KB)
 RX errors 0 dropped 0 overruns 0 frame 0
 TX packets 1920 bytes 177354 (177.3 KB)
 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlp2s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
 ether e4:42:a6:3b:0c:8b txqueuelen 1000 (Ethernet)
 RX packets 0 bytes 0 (0.0 B)
 RX errors 0 dropped 0 overruns 0 frame 0
 TX packets 0 bytes 0 (0.0 B)
 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

$ sudo lshw -c network
 *-network 
 descrição: Ethernet interface
 produto: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
 fabricante: Realtek Semiconductor Co., Ltd.
 ID físico: 0
 informações do barramento: pci@0000:01:00.0
 nome lógico: enp1s0
 versão: 15
 serial: 3c:52:82:99:88:9e
 tamanho: 1Gbit/s
 capacidade: 1Gbit/s
 largura: 64 bits
 clock: 33MHz
 capacidades: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
 configuração: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=192.168.1.110 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
 recursos: irq:128 porta de E/S:3000(tamanho=256) memória:e0204000-e0204fff memória:e0200000-e0203fff
 *-network
 descrição: Interface sem fio
 produto: Wireless 7265
 fabricante: Intel Corporation
 ID físico: 0
 informações do barramento: pci@0000:02:00.0
 nome lógico: wlp2s0
 versão: 59
 serial: e4:42:a6:3b:0c:8b
 largura: 64 bits
 clock: 33MHz
 capacidades: pm msi pciexpress bus_master cap_list ethernet physical wireless
 configuração: broadcast=yes driver=iwlwifi driverversion=4.13.0-37-generic firmware=29.610311.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
 recursos: irq:134 memória:e0100000-e0101fff

I would turn off wifi power management and see if we can get some tx power from the card, in terminal

sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
sudo iwconfig wlp2s0 txpower 20
systemctl restart network-manager.service