@Sorcier062 I have found the root cause, it's due to security defense on switch add-on, and on DDOS Defend, i have tested to put on and after that the deco was on WIFI, if i put off this menu and...

@Sorcier062 After 3 days to test if the solutiion was ok, i confirm that it's a good solution to reset the switch a start with a new configuration, perharps we have a bad upgrade from the last...

@Sorcier062 I have tested to reset the switch TL-SG3428x to restart with a new configuration, today the deco pass the switch TL-SG3428x without freeze and storm broadcast. I"m waiting 2 or 3 days to...

@Clive_A Thanks for you feedback, and responses, but i confirm that the switch SG3428x block the communication between deco M9 AP, if i replace the switch by and unmanged switch it's works and i see...

Hello, I have deco M9 and switch as TL-SG3428X and TL-SG108E, i have a loop between and unstability (processor a 90%) wifi deco and RJ45 wired cable, how to enable the wire cable, i see on the chat...

Any other idea ? today switch are not plug on ethernet only on WIFI