Hello,
The stored in ALM are using the web & java add ins. All of the test instances on the remote machines have these 2 addins enabled.
The error can dislay in the automatic runner for any of the machines - it can a different each time.
It seems to occur once around 5 of the machines get a test running, then the next one or so will display the error, so its impossible to get all 10 machines running at once.
Thanks