You are working as a network administrator in an organization. All employees in the organization department use laptops that are configured to use an 802.11a wireless LAN PC adapters and a wireless access point for network connectivity.
A user in the sales department returns from a field trip and reports that he cannot connect to the network. You run the configuration utility for the wireless LAN adapter. The status of the wireless network connection is shown as Not Linked. When you attempt to scan for the network, a connection cannot be made. The configuration for the LAN adapter and the wireless network connection is shown in the figure.
Which of the following should you do to fix this issue?