听力原文:W: Do you know if Bill is coming back today? M: He was supposed to arrive next week, but I've got a letter from him saying he is coming tomorrow. When will Bill come back?
【单选题】A client roams from H-REAP AP1 to H-REAP AP2. The client is unable to associate to H-REAPAP2. H-REAP AP2 has six other clients associated to it,which continue to pass traffic. What hascaused thisprobl...