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What could cause the error "Error during Connect (This isn't a valid PLC address, or PLC is busy, or Media is off.)" when trying to connect to the Unity Pro simulator?

Published date: 17 June 2020

One possible explanation for this error is a conflict between Unity and the v6.0 Ethernet MBX driver. Uninstalling the v6.0 Ethernet MBX driver and rebooting the PC will correct the issue.

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