[SOLVED] No Access Point

[paradox]

Hello, 
I am totally new with moode audio. A came from Volumio an loved its ready-to-use Access Point - feature.
I really want to use Moode Audio offline on a music festival but unfortunately, the AP-Mode is not working on my Moodeaudio- image.

My Hardware- Setup:

• Raspberry 3 B+
  
• SanDisk Micro-SD-Card (32 GB) for the Moode Aduio- image
  
• SanDisk Micro-SD-Card (16 GB) for the Rasbian Stretch Lite- image
  

I have done the following steps:

1. Installed Stretch Lite on my 16 GB Micro-SD
   
2. Started my RasPi with it.
   
3. Entered the commands from the support-page moodeaudio.org via SSH (Putty)
   
4. I configured it this way:
   - no proxy- WLAN connection (SSID and PW from my WLAN- router at home)- install image on USB- device (my 32 GB card was plugged in with a cheap usb-sd-adapter)- no backup image
   
5. Installation was completed after a while
   
6. Inserted new moode -sd card into my RasPi
   
7. After a while, i was able to reach the Moode Audio- configuration- site with Chrome
   
8. Navigated to network- page
   
9. Removed SSID there ("AP-Mode enabled")
   
10. Reboot
    

I have waited for a while, but no access point "Moode" was found with my smart phone.
Do you have any suggestions?

Thanks a lot,
Sascha