平板电脑从RouterBoard 951G 2HnD WIFI网络“随机”断开和重新连接

网络工程 无线的
2022-02-28 08:01:51

我们有一个产品考虑在客户的房间安装一个 Mikrotik RouterBoard 951G 2HnD，它托管一个连接到我们客户网络的具有 WPA2 PSK 安全性的 wifi 网络和一个连接到 Mikrotik 的 wifi 网络的 Android 平板电脑。该解决方案已安装在我们客户的数十个站点上，我们之前从未遇到过任何问题。

两周前，我们客户一栋大楼内的所有房间（四个）开始出现无线网络问题。经过几个小时的出色工作后，每台平板电脑都会从 RouterBoard 951G 2HnD 的 wifi 网络断开（或被丢弃？），然后立即连接。在第一次断开连接（或被丢弃）并重新连接后，平板电脑将继续断开连接（或被丢弃）并从 wifi 重新连接几分钟，这将以最终断开连接结束，然后不再有重新连接意图。

该解决方案在几个月内运行良好，但在我们更换平板电脑后，这种情况开始发生。一开始我们以为是换了平板，但换了其他安卓平板和安卓手机，还是会出现这个问题。我们还将RouterBoard 951G 2HnD 替换为在另一个办公室运行良好的RouterBoard 951G 2HnD，它也开始表现出这种不寻常的行为。

最后，我们拿了四个房间的 Android 平板电脑和 RouterBoard 951G 2HnD 中的一个，在我们的一个实验室中安装了它们，而没有修改它们的任何配置。几乎 24 小时后，问题仍未重现。

我认为激活无线调试日志会让我们显示更多相关信息并帮助我们将调查重点放在正确的方向上，但事实并非如此。接下来是日志记录：

jan/01/1970 20:03:17 interface,info ether1_Conexion_Hacia_LAN link up (speed 100M, full duplex) 
jan/01/1970 20:03:17 interface,info ether2_Conexion_Hacia_terminal_VC link up (speed 100M, full duplex) 
jan/01/1970 20:04:00 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jan/01/1970 20:04:01 dhcp,info dhcp1_My_Companys_Name assigned 192.168.89.2 to 0C:B3:19:29:08:13 
jan/01/1970 20:04:09 system,error,critical router was rebooted without proper shutdown 
jan/01/1970 20:04:20 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: sending station leaving (3) 
jan/01/1970 20:04:29 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jan/01/1970 20:07:28 interface,info ether4_Conexion_Hacia_dispositivos_internos link up (speed 100M, full duplex) 
jan/01/1970 20:07:41 system,info,account user admin logged in via winbox 
jan/01/1970 20:17:48 system,info,account user admin logged in via winbox 
jan/01/1970 20:17:50 system,info,account user admin logged out via winbox 
jan/01/1970 20:19:01 system,info,account user admin logged in via local 
jan/01/1970 20:19:28 system,info nat rule added by admin 
jan/01/1970 20:19:31 system,info nat rule added by admin 
jan/01/1970 20:19:31 system,info nat rule added by admin 
jan/01/1970 20:19:31 system,info nat rule added by admin 
jan/01/1970 20:22:51 interface,info ether4_Conexion_Hacia_dispositivos_internos link down 
jan/01/1970 20:22:52 system,info,account user admin logged out via winbox 
jan/01/1970 20:22:52 system,info,account user admin logged out via local 
jan/01/1970 20:33:20 interface,info ether2_Conexion_Hacia_terminal_VC link down 
jan/01/1970 20:33:23 interface,info ether2_Conexion_Hacia_terminal_VC link up (speed 100M, full duplex) 
jan/01/1970 23:59:08 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jan/01/1970 23:59:08 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jan/01/1970 23:59:08 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jan/02/1970 00:02:09 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jan/02/1970 00:02:09 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jan/02/1970 00:02:09 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jan/02/1970 00:05:29 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jan/04/1970 15:20:45 system,info,account user admin logged in from 10.252.163.33 via winbox 
jan/04/1970 15:37:52 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jan/04/1970 23:03:37 system,info,account user admin logged in from 10.252.163.33 via winbox 
jan/04/1970 23:03:48 system,info log rule added by admin 
jan/04/1970 23:04:07 system,info,account user admin logged out from 10.252.163.33 via winbox 
jan/04/1970 23:07:23 system,info SNTP client configuration changed by admin 
jun/15 15:53:43 system,info SNTP client configuration changed by admin 
jun/15 18:09:25 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:09:41 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:09:41 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:09:41 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:15:29 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:15:29 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:15:29 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:15:29 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:15:29 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:17:11 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:17:15 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:17:15 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:17:15 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:17:20 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:17:20 wireless,info wlan1_My_Companys_Name: data from unknown device 0C:B3:19:29:08:13, sent deauth 
jun/15 18:17:20 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:17:20 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:17:20 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:23:12 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:23:12 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:23:12 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:23:12 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:23:12 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:23:37 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:23:37 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:23:37 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:23:37 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:23:37 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:25:42 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:25:42 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:25:42 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:25:42 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:25:42 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:27:00 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:27:00 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:27:00 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:27:00 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:27:00 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:27:58 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:27:58 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:27:58 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:27:58 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:27:58 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:28:04 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:28:07 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:28:07 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:28:07 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:32:53 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:32:57 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:32:57 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:32:57 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:33:36 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:33:36 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:33:36 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:33:36 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:33:36 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:33:46 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:33:50 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:33:50 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:33:50 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:33:56 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, extensive data loss 
jun/15 18:33:56 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:33:56 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:33:56 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:34:15 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:34:15 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:34:15 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:34:15 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:34:15 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:34:54 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:34:54 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:34:54 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:34:54 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:34:54 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:35:16 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:35:16 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:35:16 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:35:16 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:35:16 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:37:17 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:37:17 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:37:17 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:37:17 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:37:17 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:37:23 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:37:27 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:37:27 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:37:27 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:38:00 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:38:04 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:38:04 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:38:04 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:38:35 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:38:35 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:38:35 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:38:35 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:38:35 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:38:41 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:38:41 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:38:41 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:38:41 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:41:52 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:41:52 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:41:52 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:41:52 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:41:52 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:41:58 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:41:58 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:41:58 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:41:58 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:41:58 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:43:05 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:43:06 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:43:06 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:43:06 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:44:32 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:44:32 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:44:32 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:44:32 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:44:32 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:45:10 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:45:10 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:45:10 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:45:10 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:45:10 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:47:24 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:47:24 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:47:24 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:47:24 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:47:24 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:47:25 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:47:25 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:47:25 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:47:25 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:47:25 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:47:25 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 2 frame received (6) 
jun/15 18:47:29 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:47:29 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:47:29 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:48:13 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:48:13 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:48:13 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:48:13 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:48:13 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:48:33 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:48:33 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:48:33 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:48:33 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:48:33 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:48:56 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:49:00 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:49:00 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:49:00 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:50:45 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:50:45 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:50:45 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:50:45 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:50:45 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:51:28 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:51:28 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:51:28 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:51:28 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:51:28 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:51:35 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:51:39 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:51:39 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:51:39 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:52:02 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:52:02 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:52:02 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:52:02 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:52:02 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:52:09 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:52:09 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:52:09 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:52:09 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:52:34 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:52:38 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:52:38 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:52:38 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:52:57 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:52:57 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:52:57 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:52:57 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:52:57 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:53:56 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:53:56 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:53:56 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:53:56 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:53:56 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:54:08 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:54:09 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:54:09 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:54:09 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:55:14 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:55:14 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:55:14 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:55:14 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:55:14 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:55:19 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:55:19 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:55:19 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:55:19 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:56:43 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7) 
jun/15 18:56:47 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:56:47 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:56:47 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:57:02 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:57:02 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:57:02 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:57:02 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:57:02 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:57:03 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 attempts to associate 
jun/15 18:57:03 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: reassociating 
jun/15 18:57:03 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, ok 
jun/15 18:57:03 wireless,debug wlan1_My_Companys_Name: 0C:B3:19:29:08:13 in local ACL, accept 
jun/15 18:57:03 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: connected 
jun/15 18:57:03 wireless,info 0C:B3:19:29:08:13@wlan1_My_Companys_Name: disconnected, received deauth: class 3 frame received (7)

此外，我们还进行了频谱分析，显示了每个通道的使用情况（但仅限于具有可见 SSID 的网络），结果如下：

在此处输入图像描述

在此处输入图像描述

如图所示，我们目前正在使用通道 4，但之前当问题开始发生时，我们使用的是通道 1。

我们不知道在哪里继续寻找以及为什么会出现这个问题。任何帮助或指导将不胜感激。

更新

我想添加有关wifi频谱使用的更多详细信息。一开始我们在第一频道。然后我们切换到频道 3（参见第一篇文章中的图片），但在使用 InSSIDer 后，我们最终切换到了频道 10。

接下来是使用通道 3 时的测试结果图：

在此处输入图像描述

接下来是选择最佳 wifi 频道（即 10 频道）后的测试结果图：

在此处输入图像描述

我很想听到更多的评论和想法。使我们做一些我们还没有做过的事情的一切。

更多更新

下图展示了平板电脑和安装在一个房间的 Mikrotik 路由器之间发送的 DHCP 数据包：

在此处输入图像描述

DHCP 发现和 DHCP 请求数据包从平板电脑发送到 DHCP 服务器（据说是 Microtik 的），它们没有被 DHCP 提供或 DHCP ACK 应答。人们可能会感到困惑，并认为数据包 #997、#995、#999 和 #1004 响应了之前出现的请求，但它们的事务 ID 显示它们来自另一组请求。DHCP NAK 也是如此。在 DHCP 协议上，来自一个通信流的不同消息将保留事务 ID，如下图所示：

在此处输入图像描述

深入查看平板电脑发送的 DHCP 请求消息，我们发现一个（数据包 #785）向 IP 地址为 152.141.217.7 的 DHCP 服务器请求 IP 172.22.198.134，这很奇怪，因为唯一的 Wi-Fi 网络在测试设备上注册的是 Mikrotik 拥有的具有 SSID CVNET62710 的设备。

此外，对 ARP 数据包进行了分析，我们发现 MAC 地址为 00:00:0c:07:ac:64 的设备（显示为 All-HSRP-routers_64）报告他的 IP 地址为 172.22.198.1 和IP 地址 192.168.89.1，最后一个是 Mikrotik 持有 DHCP 服务器的 Wi-Fi 接口的 IP 地址。接下来你可以看到证据：

在此处输入图像描述

我认为这个重复的 IP 是这个房间的平板电脑断开和重新连接问题的原因。遗憾的是，我无法在其他房间拍摄照片，因此我无法保证或放弃每个房间都可能发生这种情况。

还有，今天早上我们去配置平板（当前房间）的IP地址为静态的，当我们选择手动IP地址时发现设置为192.168.1.128，不是来自由 Mikrotik (192.168.89.X) 交付。尽管唯一注册的 Wi-Fi 网络是 CVNET62710，但它似乎占用了另一个网络的 IP 地址。

我想听听您对此事的看法，看看您是否认为这可能导致设备反复断开和重新连接。

1个回答

根据您的描述和图片，我怀疑无线电干扰。

您更换了所有硬件并遇到了同样的问题。你把硬件搬到你的“实验室”，问题就消失了。这强烈暗示您的环境是问题所在。

你没有说你在哪里做与你的接收器相关的测量样本，但 12-15 分贝的信噪比不是很好。另外，我会将您的频率移至频道 1,6 或 11。如果您在频道 3 上收听，您会受到来自频道 1 和 6 的干扰，而您的接收器无法很好地处理这些干扰。

这可能看起来违反直觉，但如果您的收音机在同一个频道上，它可以更好地处理干扰。

其它你可能感兴趣的问题
上一篇在一个外部 IP 后面的两台不同 PC 上配置远程访问 下一篇长线是否需要 IP 地址或子网？