What is Troubleshooting?
Troubleshooting is a process where you have to find the issue and then resolve it.
The first step to troubleshoot an issue is to gather information about the issue. Once you have enough information to resolve the issue, you find the appropriate way to resolve it. Once the issue has been resolved, you need to have a second check to make sure that the issue has not arisen again.
The success of the troubleshooting is dependent on how experienced the troubleshooter is. If you contact a very experienced personnel, you will have your issue resolved way faster than if you contact an inexperienced personnel.