why it always disconnect and failed to adopt my eap110... it hapen to me 3times ..please help me... and i know i input the right user and password of my controller/ and the default user and password o

i am using eap110 indoor and created a voucher authentication ssid and my costumer what my wifi range extend up to 700 meter away (where their house is located). and my friend wants to give me his AP(

why im getting this errors this image is the one pop out not the portal why some of my client is in user even tho i activate the guest in that ssid??thank you