Using NDP in ipv6 configuration

[Qaler]

Hello everyone, I want to give every lan device IPv6 connection.
Router itself gets proper global IPv6 address and can ping ipv6.google.com.
But with Merlin IPv6 configuration page,
Connection type: Native,
DHCP-PD: on,
Auto Configuration Setting: on,
Connect to DNS Server automatically: on,
Enable Router Advertisement: on.
Lan devices can only get fe80::f4f2:aeb7:XX:XX%4 IPv6 address, can't ping ipv6.google.com neither.
I want to know if it is a ndp problem and how to solve it?
Any answers will be appriciated!
Thanks!

 

[L&LD]

Hello everyone, I want to give every lan device IPv6 connection.
Router itself gets proper global IPv6 address and can ping ipv6.google.com.
But with Merlin IPv6 configuration page,
Connection type: Native,
DHCP-PD: on,
Auto Configuration Setting: on,
Connect to DNS Server automatically: on,
Enable Router Advertisement: on.
Lan devices can only get fe80::f4f2:aeb7:XX:XX%4 IPv6 address, can't ping ipv6.google.com neither.
I want to know if it is a ndp problem and how to solve it?
Any answers will be appriciated!
Thanks!

What router? What firmware?

Did you shutdown or at least reboot your entire network? Modem, router and clients?