We have Lookout 6.7.1 running on a Windows 10 PC, trying to connect to a GE Fanuc 90-30 PLC. The PLC software (VersaPro) connects to the PLC in a XP virtual machine, but Lookout running in the (Win10) host does not connect, even if VersaPro is not running.
I tried a few different CPUs, networking modules and even cables, and tried some changes to the networking settings in Windows, but couldn't get it to connect. Not even one time. Using a serial connection to the PLC, Lookout is able to connect, but when switching back to Ethernet, it fails and I get the following alarm: "Error connecting: Unknown port name specified".
We have Lookout 6.6 running on Windows 7 on another machine, connecting to the same type of PLC hardware, and it connects and runs fine.