Hello, some of my users have a strange problem; randomly, they have been disconnected after a few minutes get authenticated. Searching in log file, i've seen that the problem is "Lost Carrier" Wed Feb 28 09:16:24 2007 : Debug: Nothing to do. Sleeping until we see a request. rad_recv: Accounting-Request packet from host 192.168.181.1:32919, id=227, length=184 Acct-Status-Type = Stop User-Name = "user1" Calling-Station-Id = "00-0A-1D-18-61-B5" Called-Station-Id = "00-23-F7-F2-C1-1C" NAS-Port-Type = Wireless-802.11 NAS-Port = 0 NAS-Port-Id = "00000000" NAS-IP-Address = 0.0.0.0 NAS-Identifier = "20" Framed-IP-Address = 192.168.182.41 Acct-Session-Id = "45e53a5100000000" Acct-Input-Octets = 0 Acct-Output-Octets = 0 Acct-Input-Gigawords = 0 Acct-Output-Gigawords = 0 Acct-Input-Packets = 0 Acct-Output-Packets = 0 Acct-Session-Time = 531 Acct-Terminate-Cause = Lost-Carrier Searching onf FreeRADIUS ML I have found that the Lost-Carrier is a problem between the NAS and the user, so the problem is between the Access Point and the Supplicant. Could be a signal problem (note that the distance between the AP and the NAS is short) or there could be other things that cause this disconnection? Thanks for help