Topic Alias Invalid

The Topic Alias sent by the client is greater than the Topic Alias Maximum the server declared, or a Topic Alias of 0 was used. Sent in a DISCONNECT packet to report the invalid alias.

References

docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html

In this namespace

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ServerUnavailable SessionTakenOver SharedSubscriptionsNotSupported SubscriptionIdentifiersNotSupported Success TopicAliasInvalid TopicFilterInvalid TopicNameInvalid UnspecifiedError UnsupportedProtocolVersion UseAnotherServer