A network administrator has been receiving complaints about dropped voice calls. The administrator looks at the client's information on the access controller. The administrator sees that the clients…

A network administrator has been receiving complaints about dropped voice calls. The administrator looks at the client's information on the access controller. The administrator sees that the clients experiencing dropped voice calls have a roaming status of Normal. The administrator also sees that the clients not experiencing dropped voice calls have a roaming status of Fast Roaming. What could cause two clients to have different naming statuses?