@boris29 Check the physical connection is stable or not? How did you power the EAP? Maybe the power supply issue. Can you ping EAPs when it shows Disconnected? Make sure the cable are all good.

@lowerpower Yes, you're right, the EAP225 v1 is not compatible with newer controller. But if no need more features, it's not necessary to upgrade your EAP-225 outdoor to a newer firmware, in case...

@Bob_Upandoon Which operation mode the CPE used? Did you set the same channel and channel width on both CPE? What is the security option you choose for WPA-PSK? AES? WPA2-PSK?

@Oliv2831 What is firmware version of EAP245 V3? EAP245 v4 doesn't support PPSK without radius, as I know. Take a look: Getting To Know PPSK (Private Pre-Shared Key) of Omada EAP Products Have you...

@Athena4537 Did you have management vlan set? Any ACL? EAP ACL? Gateway ACL? It should be easy to deploy it as the article mentioned: How to configure Multi-Networks & Multi-SSIDs

@Darkmage Great!