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Why can I ping my M580 but can not connect with Unity or HMI?

Loaded a new M580 application to the CPU and can ping the IP address but can not connect.

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Unity, Control Expert, M580

By default, Security is enforced in a new project and all Ethernet services are turned off (Disabled) and Access Control is turned on (Enabled) limiting communications to only Double clicking on the Ethernet port and unlocking security will enable all services and disable Access Control allowing any address to communicate to the M580.

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