[Discuss] Ubuntu 16.04 Wifi Connection Disappeared

[Nancy Allison]

Hi, everyone. Thank you for your great replies! I hope this additional
detail is useful. (Yep, means problem not solved yet.)

Greg:

I followed your numbered steps, which were great, through #3. At #4, I see
your screenshot. However, the list on the left contains only two items:

Wired
Network proxy

Airplane Mode is off, but there is no Wireless item on the right, and no
wireless networks are listed.

Greg and Mike: I opened the terminal window and entered this command:

    sudo service network-manager restart

I put in my password.

For a while, a handy Enable Wi-Fi option appeared in a menu at the top of
the window. I clicked it! But still, it didn't discover my local wi-fi
network, so I thought, "I'll reboot, and when it loads up, it will find my
Wi-Fi network, and all will be well."

Alas, it was not to be. Instead, the Enable Wi-Fi option disappeared once
again from the list, and of course my local network was not listed among
the wi-fi networks.

So, I was back to square one.

Mike, I have a Toshiba Satellite. After a little googling about identifying
my wireless card, I ran lspci in the terminal window, and I'm seeing:

network controller: Intel Corporation Wireless 3160 (rev cb)
Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411PCI
Express Gigabit Ethernet Controller (rev 0c)

Is this the information you were looking for? Ubuntu 14.nn on this laptop
linked successfully to the Internet for quite a while. But maybe Ubuntu
16.04 could have problems with the same networking card?

As a last thought, I've rebooted numerous times, so even if I messed up my
password a time or two, I don't think I could have messed it up every time.

Thank you all so much. If there's more information that would help, ask
away. If you can think of any next steps I should try, I'm all ears!



On Tue, Jan 3, 2017 at 5:16 PM, Bill Ricker <bill.n1vux at gmail.com> wrote:

> I have had problems with WIFI waking from SUSPEND with 16.04 with one
> laptop.
> (and with a prior version with another laptop! Both Lenovo T61's.)
>
> Don't know if that's your issue but mentioning it just in case.
>  (And i may try the suggested sudo restart on that one, thanks )
>
>
>
> Bill Ricker
> bill.n1vux at gmail.com
> https://www.linkedin.com/in/n1vux
>