This post was originally published on MatrixTrak.com — the production reliability toolkit for trading bot operators and .NET engineers.
When WebSocket drops with 1006 abnormal closure and no close frame: why trading bots see 1006 instead of a clean close, and the reconnect strategy that handles it without guessing..
A WebSocket close code 1006 means your connection died without sending a close frame.
It is not a deliberate close. The exchange did not send 1000 (normal) or 1001 (going away). The connection simply went away—TCP reset, proxy timeout, load balancer kill, network partition, or the peer process crashed without cleaning up its socket.
In trading bots, 1006 is the most common disconnect signal after idle periods. It is also the hardest to debug because there is no error message, no reason string, and no close frame payload.
