I was having the same problem. Heres an easy fix. If you're using windows 10 open windows defender firewall, go to advanced settings on the left hand side, click inbound rules then click new rule on the right hand side. Click program, then next. Now, right click on your osbot .jar file, go to properties, security, next to object name will be the path to the file. copy and paste it into the program path, click next again and click allow connection, name the rule osbot and save it, you will now be able to run osbot without a problem.