Commonly required LAN port traffic

The Leviton Energy Monitoring Hub datalogger by default typically needs the following ports enabled for inbound or outbound traffic.

Port (default)	Direction	Description
80/tcp 443/tcp	inbound	Local LAN traffic enabled for a PC to reach the web interface of the product for configuration and diagnostics. A port forward from the internet through to the device is not a default requirement for functionality.
80/tcp 443/tcp	outbound	Firmware update checks and downloads from host server buildingmanageronline.com . HTTP/HTTPS/XML upload of logged data to the levitonbmo.com cloud solution (via upload.levitonbmo.com) or to a 3rd party cloud service provider.
37/tcp 123/udp	outbound	time sync (default is to sync against a pool of available internet time servers; can be user-defined)
53	outbound	DNS lookups. Default are public internet DNS servers.
2022/tcp	outbound	Leviton tech support remote access. A secure pathway to enable remote troubleshooting assistance of the Leviton Energy Monitoring Hub datalogger. If the feature is enabled, a Leviton tech must be provided the admin login password to gain access. Host server is buildingmanageronline.com .
21/tcp	outbound	FTP protocol data upload, command connection (active or passive mode)
1024-65535/tcp	outbound	FTP protocol data upload, data connection (passive mode) - contact whom you are sending the data to via FTP for more on this as their servers may limit the range to a smaller window
20/tcp	inbound	FTP protocol data upload, data connection (active mode)

Additional ports may be required depending on the configuration options set in the device. For example, Modbus TCP or BACnet IP communications.

If the appropriate ports are open yet there are still connectivity issues, it may be worth revisiting the physical connectivity and the LAN settings at the EMH.