2 Raspberry Pi 3 with same Image => one wlan0 found, one no wlan0 found - Raspberry Pi Forums

hello,
have strange problem raspberryies:
1 raspberry pi3 has no build-in wlan0 interface, when booting sd-card of raspberry pi3 wlan0 interface found , working.

ifconfig showing
eth0 , lo

no wlan0

system: raspbian gnu/linux 9 (stretch)
information should provide?

realized broadcom chipset has different number on each raspberry, see attachments.


have suggestions?

thank in advance!

ivo

i beating head against or closely related issue without resolution date. think rpf has gotten mess many or frequent upgrade cycles....like every month? result seems software testing, particularly backward compatibility , compatibility hardware variants concerned suffering. management needs put brakes on. wireless, reason, used 'just work' wont. have worked through of instructions on web page here , of solutions in forums , none of them seem zeros, 1.1 , 1.2 , 2 b+'s. maybe in firmware upgrades because have returned jessie , wheezy no avail. i'd see authoritative approach this, opposed forum wonks taking shots in dark. 3b still working
on-board wireless , have not tried 2b yet won't update , have fingers crossed on net-connected 3b.

in case, wlan0 shows in ifconfig never gets ip router. lsusb , lsmod , have tried multiple variants on /etc/network/interfaces , wpa_supplicant.conf. using garden variety edimax 7811un dongles. router has not changed , 3b connected , still gets ip assigned. go figure!

no except moral support. luck!

raspberrypi