The Control4 Dooya driver communicates with all Dooya Connector Bridge devices on the local network using UDP multicast. This allows the driver to broadcast discovery and control messages that can be received by all Dooya bridges simultaneously, enabling efficient and reliable communication.
UDP multicast communication can be disrupted by certain network configurations or hardware features—especially on wireless access points (APs) and managed switches. The most frequent causes include:
Access Points (Wi-Fi) – Many access points block or fail to route UDP multicast and broadcast traffic from Wi-Fi to the wired LAN by default. This is often done to reduce wireless congestion. As a result, Control4 controllers connected via Ethernet may not be able to discover or communicate with Dooya bridges connected over Wi-Fi.
Network Switches – Managed switches may restrict multicast traffic through settings like multicast suppression, storm control, or VLAN segmentation.
Routers and Firewalls – Some routers prevent multicast traffic from crossing between wired and wireless segments or between VLANs unless explicitly allowed.
To ensure successful communication between the Control4 Dooya driver and Dooya Connector Bridges:
Enable UDP Multicast and Broadcast Traffic on all network devices, including access points and switches.
Disable AP or Client Isolation on wireless networks to allow LAN-wide device discovery.
Confirm All Devices Are on the Same Subnet – multicast packets typically will not traverse subnets without proper multicast routing.
Review IGMP Snooping Settings – if enabled, make sure IGMP Querier is active on the network.
Allow Wi-Fi to LAN Multicast Routing – check AP settings for options like “Multicast Forwarding,” “Allow Broadcast to LAN,” or “Enable Bonjour / mDNS,” and enable them as needed.
If communication remains unreliable:
Temporarily connect both the Control4 controller and Dooya Connector Bridge to the same wired switch to verify functionality.
Switch from the Wi-Fi based Dooya Connector Bridge to the ethernet based model.
Disable multicast filtering or isolation features on your access point.
Proper multicast handling across Wi-Fi and Ethernet is essential for stable communication and full shade control functionality in Control4.