Hi team, I resolved issue. LACP is working good .  Everyone can try "Hello, Thank you again for your cooperation and for all the information you’ve provided. As part of our continued internal investigation, we’ve identified a broader issue that aligns closely with the symptoms observed in your case. Specifically, the behavior seems to be related to the “Enforce LACP active” setting on the switch, which can result in some ports in an aggregation group becoming blocked. The “Enforce LACP active” option was previously not exposed in the Dashboard UI but had been enabled for your network from the backend. At this point, the option is currently enabled for your aggregation group. To resolve the issue, we kindly ask you to disable the “Enforce LACP active” setting. This can now be done directly via the new UI in the Dashboard. To enable the new view, click "Try new version" located in the upper right corner of the Dashboard interface. Once enabled, navigate to one of the ports in the affected aggregation group and choose the option to edit it. You should now see the toggle for “Enforce LACP active”, which can be disabled from there. Please give this a try and let me know whether the link begins operating correctly after the change. Looking forward to your reply and once again thank you for the cooperation." ... View more