An office has been experiencing spotty wireless connectivity ever since a new filing cabinet was installed. Employees closest to the cabinet report the worst performance, while those further away have fewer issues. What is the MOST likely reason for these wireless issues?
Employees are using an incorrect passphrase to connect to the wireless network.
The wireless access point is too close to the server room, causing interference.
The metal filing cabinet is causing RF attenuation.
The wireless access point has been configured to use an unsupported frequency.