WebSocket
1013 Try Again Later
The server is terminating the connection due to a temporary condition, such as being overloaded. The client should reconnect after a back-off period.
When You See This Code
The server is temporarily overloaded or throttling connections. Unlike 1012, this does not indicate a restart — the server is running but cannot serve more clients right now.
How to Fix
Reconnect using exponential backoff (start at 1 second, double each attempt). If persistent, investigate server capacity, scale horizontally, or reduce the number of concurrent connections.