M5830S AP not passing rf over ethernet

Hello, I have an M5830S AP that does not seem to be passing RF traffic through its Ethernet port. The SU shows as "Associated" in link management and if I telnet to the AP I can view the SU's status and ping it. However, from the Ethernet side of the AP I cannot ping the IP of the SU or access it over HTTP or Telnet. If I connect the SU to another AP everything works fine.  I have also checked and verified that the IP Stack is correct.

I have already tried upgrading to the latest firmware and rebooting the AP. Is there anything else that I can try?