QoS Not Supported

The QoS level requested is higher than the Maximum QoS supported by the server. Sent in a CONNACK or DISCONNECT packet when the client publishes or subscribes at a QoS the server does not support.

References

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

In this namespace

← previous ProtocolError Protocol Error next → QuotaExceeded Quota Exceeded

PacketIdentifierInUse PacketIdentifierNotFound PacketTooLarge PayloadFormatInvalid ProtocolError QoSNotSupported QuotaExceeded ReAuthenticate ReceiveMaximumExceeded RetainNotSupported ServerBusy