I am sorry to hear that you are experiencing this issue.
You can read this article, section Remote Execution, what configurations you have to make. You could also watch this short video that explains how to setup Test Studio Remote execution.
Can you reproduce this issue and send us the log files from both the execution and the scheduling machine? Clear the log files first and reproduce the problems.
Here is a short video how to enable and get log of remote executor.
And here is a short video how to enable and get log of remote scheduling server.
Thank you for your cooperation.