dhclient fails to obtain the IP address from some WiFi networks

[Eugene Grosbein]

23.03.2019 1:31, Yuri wrote:

> The laptop was getting the wifi connection right away, but dhclient was consistently failing to obtain the IP address.
> 
> 
> Here are the ktrace dumps of the dhclient process of two instances of such failure:
> 
> * https://people.freebsd.org/~yuri/dump-dhclient-failure-1.txt
> 
> * https://people.freebsd.org/~yuri/dump-dhclient-failure-2.txt
> 
> 
> The wifi driver was if_run.
> 
> 
> Can anybody tell why did dhclient fail?

There was several important changes to dhclient not so long ago.
Please describe the case in detail, including exact branch and revision of your FreeBSD system
and relevant messages of "dmesg -a" output. And output of tcpdump too, if possible.