exemys GRD-MQ Series, User Manual

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In general, each one has a specific motive although it depends on the connection on the server side
for the indication to be correct, even so, any of the these 3 errors indicate a problem in the
connection.
Connection Failed: This error appears when a connection to the configured IP is not
possible.
Host Unreachable: This happens when a connection to the IP is possible the port is open,
through the router or firewall, but there is nothing connected to that port.
Connection Refused: In this case the connection cannot be established because the
configured port is closed, this could happen because a router or firewall are blocking it.
Host Closed Connection: This is an event that happens when the server closes the connection.
This could be because the broker service has stopped, the server turned off, the connection to
Internet dropped or any motive by which the server loses connectivity.
Logging in : The connection has been established, and the GRD is going through the
authentication process.
Connected: The connection has been established and stable.
DNS Failure : The GRD can't convert the URL into an IP address. Check if the IP address is OK.
Error: The event occurs if the connection was not completed after a certain time and no other type
of failure was reported.
2020-11-19
GRD-MQ User Manual GRD-MQ to Broker Connection
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