S series switch enabled with SNMP failed to communicate with a third-party device

Check the following items if an S series switch (except S1700) enabled with SNMP failed to communicate with a third-party device:
1. Whether there are reachable routes between the device and the third-party device.
2. Whether SNMP access control is configured.
3. Whether SNMP is correctly configured, such as community name, group name, user name, version, and port number.

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