Our wifi password at work recently changed. I edited the old connection to have to new password by
$ nmcli connection edit "Internet"
$ set wifi-sec.psk <password>
$ save persistent
$ activate
Everything was fine for about five minutes. but after that the connection went down. I can re start it but it continues to go down every 1-5 minutes or so (I had to restart wifi four times while typing this question). I sometimes get an error message when trying to restart the connection but even when the error occurs the connection will successfully restart.
$ nmcli connection up "Internet"
Passwords or encryption keys are required to access the wireless network 'Internet'.
Warning: password for '802-11-wireless-security.psk' not given in 'passwd-file' and nmcli cannot ask without '--ask' option.
Error: Connection activation failed.
I've tried resetting the password for the connection again, and removing and recreating the connection all with the same results.
Is this an nmcli issue or a driver issue or something else?
Computer is a Dell Latitude E6230,
Ubuntu version is 16.04.3,
lshw
gives:
description: Wireless interface
product: Centrino Advanced-N 6205 [Taylor Peak]
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 34
serial: 84:3a:4b:9c:b5:f0
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-112-generic firmware=18.168.6.1 ip=192.168.xx.xx latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:31 memory:f7d00000-f7d01fff
iwconfig
gives:
wlp2s0 IEEE
802.11abgn ESSID:"Our Internet"
Mode:Managed Frequency:5.785 GHz Access Point: 70:8B:CD:CD:6A:04
Bit Rate=216 Mb/s Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=47/70 Signal level=-63 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:13 Invalid misc:101 Missed beacon:0
iwlist scan
gives:
wlp2s0 Scan completed :
Cell 01 - Address: 70:8B:CD:CD:6A:04
Channel:157
Frequency:5.785 GHz
Quality=45/70 Signal level=-65 dBm
Encryption key:on
ESSID:"Our Internet"
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000027b06e54a4
Extra: Last beacon: 48164ms ago
IE: Unknown: 000C4F757220496E7465726E6574
IE: Unknown: 01088C129824B048606C
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 2D1AEF0917FFFFFF0000000000000000000000000000000000000000
IE: Unknown: 3D169D0D1500000000000000000000000000000000000000
IE: Unknown: 7F080000000000000040
IE: Unknown: BF0CB259820FEAFF0000EAFF0000
IE: Unknown: C005019B000000
IE: Unknown: C30402020202
IE: Unknown: DD09001018020E001C0000
IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00