Thank you for your reply. > Did you install the iwm firmware? > https://www.openbsd.org/faq/faq4.html#WifiOnly
I can connect to the Internet via Ethernet, and iwm firmware was installed by fw_update at the first boot. There is firmware files in /etc/firmware: $ls /etc/firmware/iwm* /etc/firmware/iwm-3160-17 /etc/firmware/iwm-3168-29 /etc/firmware/iwm-7260-17 /etc/firmware/iwm-7265-17 /etc/firmware/iwm-7265D-29 /etc/firmware/iwm-8000C-34 /etc/firmware/iwm-8000C-36 /etc/firmware/iwm-8265-34 /etc/firmware/iwm-8265-36 /etc/firmware/iwm-9000-34 /etc/firmware/iwm-9000-46 /etc/firmware/iwm-9260-34 /etc/firmware/iwm-9260-46 /etc/firmware/iwm-license Matsuda Kenji