Hi,@rajuuuu 

Thank you for posting on our business forum.

Could you please share the specific details of your VLAN configuration with us?

Please be advised that your VLANs will not be able to communicate with each other if any of the following configurations are applied: you set up an ACL after configuring VLANs, you configure 802.q VLANs, or you enable Isolated Network.

We kindly recommend that you refer to the following content to attempt reconfiguring your VLAN:How to configure VLAN on Omada Gateway via Omada Controller | Omada Network Support