[sf-lug] thanks for the help : need help with wifi access

Wed Jan 9 12:05:53 PST 2019

info interspersed below.

On 1/8/19 9:05 PM, Rick Moen wrote:
> Quoting Jim Stockford (jim at well.com):
>
>> both Sunday, from Ken, Bobby, and John,
>> and, hopefully, in subsequent emails.
>>
>> My Ubuntu 18.04 laptop was successfully
>> using wifi until my wifi gizmo died, maybe
>> with a last electronic shriek.
> What the gehenna does the above mean?
>
> Some identified wifi gizmo _died_?
I should have written "doohickey" rather than "gizmo".
It was a hardware thing that's got Linksys written on it.
It is a router plus a four-port switch plus antennae for
a wifi access point, along with a dhcp server and other
software. I do not know the correct name for these
things. By "died" I mean is no longer electrically or
otherwise functional.
> What does 'died' mean in this
> context?  What does 'electronic shriek' mean?  And what does the 'maybe'
> signify in this context?  i.e., are you saying something happened, or
> _not_ saying it happened?  Saying _maybe_ something happened tells your
> readers nothing.
I'm saying that not only did my doohickey die, but my laptop's
ability to use wi-fi ceased, if not deceased. I'm guessing that
the death of the doohickey somehow created damage to my
laptop's networking software. The IP address for my laptop
changed from 192.168.1.something to 169.?.?.?
> Whatever 'died' means, do you mean that you subsequently got and
> installed a new one?  What's the new one?
Yes, I took the dead doohickey to Actnet Computer, on
Judah at 27th. They confirmed it was non-functional and
sold me a used similar doohickey that says Linksys on it
and works. Below "Linksys" is printed EA6900.
> Is the new one perhaps an Intel Wireless-AC model 9260-series
> wireless/Bluetooth card in M.2 2230 physical format, one like this (as
> suggested by your dmesg output)?
> https://www.amazon.com/Intel-Wireless-Ac-9260-2230-Gigabit/dp/B079QJQF4Y
> My point is, you haven't even told us what the wireless hardware in
> question _is_ (make and model), let alone why it should be surprising to
> have a lack of functionality if something 'died'.
I hope that's cleared up.
> Maybe you should back up and start over, because the entire anecdote
> starts out hopelessly confused.  Include a coherent account of what you
> mean when you say that your gizmo 'died', please.
>
> And, when you do that, you should consider writing a Subjet header more
> descriptive than 'tahnks for the help'.
>> I've got wired networking up, but not wifi. So far I've encountered
>> only the unhelpful tips via the internet.
> But you don't bother saying what the exact symptom is,
> JS: the symptoms are that my laptop does not show any
> wifi access points, none at all, and that using Settings
> and choosing "Wi-Fi" the information panel shows "No Wi-Fi
> Adaptor <CR> Make sure you have a Wi-Fi adapter plugged
> and turned on"
> The physical wifi components are built-in, probably on
> the motherboard. This is a ZaReason re-branded laptop that
> ZaReason labels it Ultralap 6440 i5"
>
> or what you've so
> far done to investigate,  except:
>
>
>> When I use the settings feature for wifi,
>> the system returns "No Wi-Fi Adapter Found
>> Make sure you have a wifi adapter plugged and turned on"
> Speaking for myself, I have absolutely no idea what you mean when you
> say 'the settings feature for wifi', but I'm guessing that you're making
> a vague reference to some GNOME DE thing (that gives nearly totally
> useless problem feedback).
>
> You should run iwconfig -- to see what interfaces are valid.
Thank you!

# iwconfig
lo        no wireless extensions.

enp58s0f1  no wireless extensions.

wlp59s0   IEEE 802.11  ESSID:off/any
           Mode:Managed  Access Point: Not-Associated Tx-Power=off
           Retry short limit:7   RTS thr:off   Fragment thr:off
           Encryption key:off
           Power Management:on
> Just running through marginally relevant suggestions you find on
> https://ubuntuforums.org/ is a poor substitute for diagnosis and
> testing.
> JS: I don't know what to do. I'm guessing trying things
> in some sequence.
>
>
> What wouldn't hurt is removing and then reloading the iwlwifi module:
>
> $ sudo modprobe -r iwlwifi
> $ sudo modprobe iwlwifi
>
> JS: DONE. Need to reboot?
> Results were to turn Airplane Mode on. I turned it off.
>> root at UltraLap-6440:~# lspci
>> 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core
>> Processor Host Bridge/DRAM Registers (rev 08)
>> 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics
>> 620 (rev 07)
>> 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0
>> xHCI Controller (rev 21)
>> 00:14.2 Signal processing controller: Intel Corporation Sunrise
>> Point-LP Thermal subsystem (rev 21)
>> 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP
>> CSME HECI #1 (rev 21)
>> 00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA
>> Controller [AHCI mode] (rev 21)
>> 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express
>> Root Port (rev f1)
>> 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express
>> Root Port #5 (rev f1)
>> 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express
>> Root Port #6 (rev f1)
>> 00:1f.0 ISA bridge: Intel Corporation Device 9d4e (rev 21)
>> 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
>> 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
>> 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
>> 3a:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd.
>> RTL8411B PCI Express Card Reader (rev 01)
>> 3a:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd.
>> RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
>> 3b:00.0 Network controller: Intel Corporation Device 2526 (rev 29)
>>
>> _______________________________________________
>> sf-lug mailing list
>> sf-lug at linuxmafia.com
>> http://linuxmafia.com/mailman/listinfo/sf-lug
>> Information about SF-LUG is at http://www.sf-lug.org/<br>
>> Related Information <br>
>> http://www.shallowsky.com/blog/<br>
>> http://explainshell.com/ <br>
> _______________________________________________
> sf-lug mailing list
> sf-lug at linuxmafia.com
> http://linuxmafia.com/mailman/listinfo/sf-lug
> Information about SF-LUG is at http://www.sf-lug.org/<br>
> Related Information <br>
> http://www.shallowsky.com/blog/<br>
> http://explainshell.com/ <br>
>