Trying to keep WhatsApp outbound messages flowing when the primary WAN cuts out. Edge 2024.6.1 on R750 nodes flips to local survivability mode. Dual NIC bond holds steady, BIOS stays in performance mode with C-states off. Digital queue routing throws a 408 Request Timeout on the local messaging gateway endpoint. Logs show the Edge node drops the WebSocket handshake. It’s failing after the failover script runs. Queue depth hits zero in twenty seconds. Don’t see any firewall blocks on the subnet.