When you encounter a problem, the most effective method of solving it is by getting to the root cause. You can create a fishbone diagram to help yourself determine that.
Cause and effect analysis is a great technique for investigating the real issues in any organised system, or solving any problem. A fishbone diagram is a tool that has you first determine factors that affect your problem, followed by determining actual causes that affect the factor. Skill development web site Mind Tools explains:
Once you've written down the problem, draw several lines that extend out from your long horizontal line. You're now going to brainstorm all of the factors that could be contributing to this problem. These may be systems, equipment, materials, external forces, people involved with the problem, and so on. When you've brainstormed possible factors, draw several horizontal lines that extend outward from each one. You're now going to brainstorm possible causes of the problem, related each factor.
Once you've identified all possible causes of the problem, you can do a much more thorough review to find the true root cause. With the root cause known, you can move forward and solve almost any problem. To learn more about cause and effect analysis, check out the link below.
Cause and Effect Analysis [Mind Tools]