I have looked at the troubleshooting area on the controller for my test client and I noticed the difference between a good complete connection from the R720 and the T750. The R720 provided DHCP offering form the DHCP server and the T750 did not so it never gets the DHCP address.
Any help is appreciated. I'm thinking is there anything special about the T750 that needs another option configured on the DHCP server? option 43 is already there and as I said everything works fine with R720 but I just bought these T750 for an outdoor event.
Controller was upgraded from 3.6.2 to 5.2.1. Only on T750 it doesn't work. Also bridge @AP SSID work fine with providing a local IP so this is pointing to an issue with T750 and the Data Plane it looks like. I just can't believe that no one else in the world has deployed 5.2.1 with T750 outdoor APs. We can't be the 1st.