Stable WebSocket Market Data: Stop Random Disconnects in Your Algo

Stable WebSocket Market Data: Stop Random Disconnects in Your Algo

Broker WebSocket feeds dropping randomly? Learn why Indian ISPs kill long-lived connections and how a datacenter static IP plus correct reconnect logic fixes it.

The symptom

Your bot subscribes to KiteTicker, Fyers data socket or SmartWebSocketV2 at 9:15. Sometime between 10:30 and 14:00 the feed silently freezes or throws a 1006 close code. Candles gap, indicators go stale, and your strategy trades on old prices. Restarting fixes it — until tomorrow.

Why consumer connections kill WebSockets

Fix part 1 — move the connection onto datacenter networking

Route the WebSocket through your dedicated static IP. Datacenter NAT/routing is engineered for long-lived flows: no CGNAT eviction, no rotation, no power-save. This one change removes the majority of mystery disconnects. Most broker SDKs accept proxy parameters for their socket clients, or honour HTTPS_PROXY from the environment.

Fix part 2 — reconnect logic that assumes failure anyway

Heartbeats and keepalive

Enable TCP keepalive on the socket and respond to broker ping frames promptly (SDKs do this if you don't block their event loop). Never run heavy computation on the WebSocket callback thread — hand ticks to a queue and process elsewhere.

Result

Datacenter-grade path + defensive reconnects turns the ticker from your least reliable component into one you forget about. Combined with the same static IP carrying your order flow, both halves of your algo present one stable identity to the broker all day.