Sophos RED 15w Access Point not activated by Sophos XG Firwaall

Question

Hello, 
 we use an RED 15W with an Sophos XG Firewall. Tunnel connection via LAN works as expected. 
 But the WLAN-Access-Point of the RED is marked as inactive in the XG. 
 I hope the image is readable:

It is member of a WLAN Network and Member of a WLAN Group. 
 The RED has WIFi enabled. 
 Are there any typical configuration errors, we could have made? 
 How to get the Access Point activated? 
 Best Regards 
 Frank Ruenael

Frank Rünagel · Answer

Problem solved. For tests The RED 15W has been deployed in an LAN, where Unify-Access-Points were accessible. 
 After separating the networks, everything works as expected. 
 Thanks for reading. 
 
 Regards 
 Frank