too_many_connections

Too many concurrent WebSockets for this token.

HTTP 429.

Likely cause: More connections than the per-token limit.

What to do: Close unused connections or multiplex subscriptions over one.

Retry: Yes. Nothing happened (or it was a read), so repeat it, after Retry-After when present.

Listed under Keys, tokens and permissions in Errors. Send the error’s requestId to support and we can find the request.