Computer will not stay connected to wifi

by Indigo   Last Updated February 15, 2018 16:02 PM

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: [email protected]: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


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