Go into your ESS config and make sure that the settings are still there, when I first installed industrial I had to re-enter the settings and all has been fine since.

DazTheGas

The problem here was solved with Andy from Warp9 and a Teamviewer session. He set my firewall settings by hand for industrial, his SCU configurator doesn't account for Mach4 Industrial.

And, we found my machine.ini did not make the transition for some reason. We manually copied the machine.ini from hobby to industrial and all was well.

Andy wasn't positive what actually fixed me, but it's been good since.

Here is the Warp9 forum thread for ref.

https://warp9td.com/index.php/kunena/7-general-discussion/6493-mach4-industrial