Channel Errors
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      1. Ably FAQs
      2. Ably error codes
      3. Channel Errors

      Error code: 90007 - Channel didn't attach within 00:00:10

      Note: In older versions of our ably-java SDK this error was incorrectly assigned to error code 91200

      This error is most likely to occur for clients with poor internet connections, where an ACK response to an ATTACH request does not make it back in the time period (default 10s).

      If you're expecting slow network conditions, we'd recommend adjust the realtimeRequestTimeout or channelRetryTimeout (depending on client library) to a higher value.

      Please see here for instructions on how to change this on ably-js