Hi  @Xave 

When working in AP/Client mode, the address mode is static by default.

You may go to the following page to change it to Dynamic to have a try.

  @Vincent-TP Hi thanks for your reply. unfortunately the connection type cannot be change why?

Hi  @Xave 

What's the operation mode you are using again? AP or client mode doesn't support enabling DHCP server.

Are you using AP Client Router (WISP Client) mode?

  @Vincent-TP Yes sir. I'm using AP client mode (WISP)

Hi  @Xave 

This is mostly because it doesn't support IPV6 when it works under this mode.

Why do you want the CPE to get an IPv6 address?  Will the clients connecting to the CPE get IPv6 address?