On Thu, 9 Jul 2020 11:55:02 -0700 (PDT), in
gmane.comp.hardware.beagleboard.user Manderson
<matthewdanderson23-re5jqeeqqe8avxtiumw...@public.gmane.org> wrote:
>Hi all,
>
>I typically take the wired approach when connecting to my Beaglebone (plug
>in USB-C power to a port on my laptop and ssh with the 192.168.6.2 IP).
What type of computer are you using (OS)? I ask as Windows normally
uses 192.168.7.x, Mac the 192.168.6.x, and Linux apparently works with both
(they are, I believe, slightly different USB<>Ethernet protocols).
>I've noticed, however, in the past several days that my BBAI loses wlan
>connectivity if my host computer goes to sleep (e.g. overnight). Pinging
Odds are very good that the USB port powers off when the host sleeps.
That means the BBAI is getting a very rude power drop -- risking file
system corruption, and who knows what may happen when the host wakes up and
the BB AI reboots.
Also, it may be that you aren't even using the WiFi connection -- if
the host is performing the equivalent of "Internet Connection Sharing" your
...
>google.com after this happens results in
>debian ~ $ ping google.com
>ping: google.com: Temporary failure in name resolution
>debian ~ $ ping 8.8.8.8
>connect: Network is unreachable
would be trying to go through the USB gadget (though I'd think if that was
active before the sleep, it would reactivate after the sleep also).
>
>2) If my board's wlan is dependent on my computer also being connected to
>wifi, then would it be detrimental to power my BBAI off a wall outlet and
>USB-C wall charger instead of plugging into my computer? Or would I not
>even be able to ssh into it?
Nothing in your post confirms that you even had a WiFi connection to
some shared router (if you had, you wouldn't be using 192.168.6.x to
connect to the BB AI, but instead be using an IP number -- or hostname:
beaglebone or beaglebone.local -- to connect using a path through the
router. Does your router even show the BBAI as a Wireless client?
Even if the USB port remains powered while the host sleeps, if you were
going via ICS (BBAI<>USB gadget<>host WiFi [or cable]<>router<>ISP), the
host WiFI may go down when the host sleeps, and possibly it gets a
different DHCP assignment on wake-up which is not being reflected in
routing tables for the USB gadget.
--
Dennis L Bieber
--
For more options, visit http://beagleboard.org/discuss
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