Employees in an office are experiencing intermittent wireless connectivity that is affecting their ability to maintain remote desktop sessions. The issue seems to occur sporadically throughout the day and is not isolated to any specific workstations. What should a technician investigate FIRST to troubleshoot this issue?
Update the firmware on all the wireless access points immediately.
Change the TCP/IP configuration settings on the affected workstations.
Replace the network interface cards (NICs) in the computers losing connectivity.
Conduct a site survey to check for external interference affecting the wireless channels.