After multiple attempts to identify the root cause of the LLDP issue and the corrupted network topology—problems that appeared after upgrading the Omada Controller to v6—I rebuilt the configuration...

Same problem with my setup. And no solution even with the latest omada update The only solution I have found is disabling LLDP-MED on the default profile and assign it to access port Keep the "all"...

@Vincent-TP After updating my hardware controller oc 300 v1, I got major problem with non corresponding uplink and downlink interfaces, got some ap as uplink. I have more than 500 endpoint connected...

@GRL In the GUI the problem was firmware outdated, and all VLAN are configured properly , after some test and changing the omada server ip seems to work now. Thank you

@OMADA-tunisia

Having more than 30 switch T1600G-28TS working fine with omada ver 5.x. After upgrading to omada 6.0 I can't manage them any more. All network is down. Can you add support for them