Wi-Fi: netif restart wlan0: name resolution: dhclient

On 12/09/2022 11:35, David Wolfskill wrote:
>
>> ... The name resolution problem was with DHCP.
> Right -- re-connecting (e.g., via "service netif restart wlan0") should
> be starting "dhclient wlan0". ...

I'm as certain as I can be that dhclient does run.

(I would have noticed the absence of an IP address in output from 
ifconfig wlan0.)

So, if /etc/resolv.conf (a) lacked what was required following those 
things, then (b) was OK following a reboot of the OS: what might be the 
explanation for (a)?

Privately, I received hints such as this:

> You can run:
> tcpdump -i wlan0 -s 0 -vvv port 67 or 68
> to watch the DHCP dialog and see what your server is sending. 
-- useful for the future, but I'm now faraway from the home router where 
FreeBSD behaved strangely.