Hi kamisan,
thanks for fast answer. But it still NOT work here.
This is what I tried today (when I read your anser):
- Write astroberry-image to sd-card
- put sd-card into raspberry pi 3+ B+
- connect hdmi-monitor and usb-keyboard to raspberry
- boot raspberry
- Now I can FIND WLAN-network with ssid astroberry with other devices (smartphone, windows-laptop)
- I start MATE TERMINAl at raspberry
- then I use sudo nano /etc/hostapd/hostapd_3bplus.conf to change ONLY this file
- I this file I change ssid=astroberrytest, hw_mode=g, channel=6, wpa_passphrase=test
- I save file in nano with ctrl-o and exit with ctrl-x
- Then is reboot with sudo reboot
- After reboot my other devices (smartphone, wndows-laptop) do NOT FIND ANYMORE a WLAN with SSID = astroberrytest or atsroberry (only my home-WLAN and WLANs from neighbors)

Where is my mistake ???????????????
Can somebody help me PLEASE, whow to change SSID and password from astroberry-VAP ???
Thanks and best regards
mats

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