Final answer:
To resolve the situation, Robert should send out a mass email to all technicians and update the knowledge base article with the new URL to ensure that all personnel have access to the correct information and can continue to provide support to users efficiently.
Step-by-step explanation:
Robert is faced with a common workplace problem-solving situation. After learning from his boss about the change in the application's URL, which is causing access issues for a user, he needs to disseminate this information to all other technicians. The best practice in this scenario would be to choose the most efficient and reliable form of communication. Printing flyers or yelling across the room are not professional approaches and could potentially miss some technicians or lead to misinformation. Instead, Robert should send out a mass email to all technicians as it is instant, ensures that everyone receives the exact information, and provides a record of communication. Additionally, Robert must update the knowledge base, which is likely to be the first place technicians check for updates or information when troubleshooting issues. By updating the knowledge base and sending a mass email, Robert can ensure that all technicians are aware of the change and can assist users effectively.