Hi, I tried to use the wifi connection of the raspberry pi 3 but every time I do this, I get an error.
Also when I try to log in, I need to use username: pi and password: raspberry
used image: openhabianpi-raspbian-20170318-git9767b24-crc9616e8a1.img.xz
I had the same Problem, therefore I used Ethernet and than I was able to install. I guess the problem is any Timeout or incompatile Security key.
But this you hat more problems - the last lines you had several Errors. So i guess there is something wrong with you image on the SD Card.
You should install the image again.
I used this article on makeuseof.com to set up the wi-fi on my Raspberry Pi 3:
http://www.makeuseof.com/tag/setup-wi-fi-bluetooth-raspberry-pi-3/