Hello,
Currently this is what I have setup.

1 RB433
- ap bridge
- Static IP address on eth1 on WAN side
- eht2 & eth3 setup in bridge, dhcp server setup for this bridge
- WLAN setup with it's own dhcp server and hotspot is setup to radius server to authenticate
this setup is working fine, I get the hotspot login page and authenticate and am able to browse the internet.

1 RB411AH
- ap bridge
- eth1 setup for DHCP client
- WLAN1 setup for dhcp with 172.16.x.x scope for all wifi clients
- hotspot setup on wlan1 port to use RADIUS server
- no bridges setup


I have the RB411AH on eth2 on the RB433. I would like the RB411AH to use the same RADIUS server as the RB433 does. I can connect to the RB411AH when it is on the RB433 eth 2 and I get a DHCP IP address from the RB411 successfully, but when I go to browse the internet I get the hotspot login page but it does not authenticate with the RADIUS server. Is there a way to get this to have the RB411AH use hotspot setup without having to mesh it with the RB433? Thanks for the help

Is the radius server ip address entered on the RB411?

No,
The RADIUS server ip is only on the RB433 not the RB411AH.