Computer network support specialists typically do the following:

• Test and evaluate existing network systems
• Perform regular maintenance to ensure that networks operate correctly
• Troubleshoot local area networks (LANs), wide area networks (WANs), and Internet systems

Computer network support specialists, also called technical support specialists, usually work in their organization's IT department. They help IT staff analyze, troubleshoot, and evaluate computer network problems. They play an important role in the routine maintenance of their organization's networks such as performing file backups on the network. Maintenance can be performed daily, weekly, or monthly and is important to an organization's disaster recovery efforts. Solving an IT problem promptly is important because organizations depend on their network systems. Network support specialists may assist the organization's computer users through phone, email, or in-person visits. They often work under network and computer systems administrators, who handle more complex tasks.

Computer user support specialists typically do the following:

• Pay attention to customers' descriptions of their computer problems
• Ask customers questions to properly diagnose the problem
• Walk customers through the recommended problem-solving steps
• Set up or repair computer equipment and related devices
• Train users to work with new computer hardware or software, such as printers, word-processing software, and email
• Provide other team members and managers in the organization with information about what gives customers the most trouble and about other concerns customers have

Computer user support specialists, also called help-desk technicians, usually provide technical help to non-IT computer users. They respond to phone and email requests for help. They can usually help users remotely, but they also may make site visits so that they can solve a problem in person.

Help-desk technicians may solve a range of problems that vary with the industry and the particular firm. Some technicians work for large software companies or for support service firms and must give instructions to business customers on how to use business-specific programs such as an electronic health records program used in hospitals or physicians' offices. Sometimes they work with other technicians to resolve problems.

Other help-desk technicians work in call centers, answering simpler questions from non-business customers. They may walk customers through basic steps in re-establishing an Internet connection or troubleshooting household IT products such as a Wi-Fi router.