@Tedd404 Thanks for your help and support. Complex problems always have simple solution. The DIP switch settings on the TPLink ( TP-Sl1218-MP) switch was the root cause. I had a simple home network...

Yes, It is enabled

I am able to ping OC200 connected to second port. However when try to ping EAP's from OC200 it is NOT SUCCESSFUL

@MR.S It is enable by default and can confirm that "Show Pending Devices is enabled"

@MR.S All EAP's are TPlink 115 Hardware Version : 4.0 Firmware Version: 5.0.5 Build 20220427 Rel. 42838(5553) All of the EAP's and Controller are connected on single TPlink POE Switch TL-Sl1218MP (...

I have TPlink switch ( POE) connected to 3 Access points( EAP wall plate 115) and OC200 . The OC200 is unable to see any access point. There is no omada gateway but only TPLink small router for WAN...