Just wondering, if I should try the below steps:
1) Download AP4102 (EU) Thin ImageThin image ( is this AP image for controller to download?) from
https://extranet.extremenetworks.com/downloads/Pages/RoamAbout4102.aspx
2) Upload to FTP and then download the image from FTP in the EWC webview.
![d33a5d87c3d44a0597037debef379627_RackMultipart20150818-25878-10q1bv6-rbt4102_2_inline.jpg d33a5d87c3d44a0597037debef379627_RackMultipart20150818-25878-10q1bv6-rbt4102_2_inline.jpg](/t5/image/serverpage/image-id/4602iA21571991E3F3E9F/image-size/large?v=v2&px=999)
3) check if controller can detect