cAP Lite Wifi stops working, most/all clients not connecting, reboot required

[tzalmaves]

Hello All,

cAP Lite (mipsbe) on v6.49.19 (upgraded from v6.49.17, which also had this problem), configured with three SSIDs, using VLANs. They are:

Green: 2 clients (printers)
Blue: 30ish clients (IoT devices)
Purple: 0 clients (guest)

Roughly weekly, most (probably all) devices on Blue become disconnected. Green (and presumably Purple) continue to work just fine.

Here's the log taken shortly after the problem happens. Keeps going forever until a reboot, then it's fine for about a week again:

# sep/ 5/2025  8:16: 9 by RouterOS 6.49.19
# software id = [Redacted]
#
07:15:31 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:15:36 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
07:16:19 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -69 
07:16:24 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -58 
07:16:55 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -61 
07:17:00 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:17:32 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:17:37 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:18:19 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -61 
07:18:24 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:18:55 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:19:00 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -63 
07:19:32 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:19:37 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:20:19 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:20:24 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -60 
07:20:55 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:21:00 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -63 
07:21:32 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
07:21:37 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -66 
07:22:20 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -56 
07:22:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -60 
07:22:56 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -61 
07:23:01 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
07:23:33 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -58 
07:23:38 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -59 
07:24:20 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -58 
07:24:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:24:56 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -58 
07:25:01 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:25:33 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -57 
07:25:38 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -59 
07:26:20 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -58 
07:26:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:26:57 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -57 
07:27:02 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -59 
07:27:33 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -59 
07:27:38 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:28:21 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:28:26 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -59 
07:28:57 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -58 
07:29:02 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -59 
07:29:34 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -58 
07:29:39 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -60 
07:30:21 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -58 
07:30:26 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -59 
07:30:58 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -59 
07:31:03 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:31:34 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -57 
07:31:39 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:32:21 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:32:26 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:32:58 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -61 
07:33:03 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:33:35 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:33:40 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:34:22 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -58 
07:34:27 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:34:58 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:35:03 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -63 
07:35:35 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -59 
07:35:40 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:36:22 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -61 
07:36:27 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
07:36:58 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:37:03 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:37:35 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:37:40 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -61 
07:38:22 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:38:27 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:38:59 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:39:04 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:39:35 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -67 
07:39:40 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -69 
07:40:23 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
07:40:28 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -66 
07:40:59 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -66 
07:41:04 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -68 
07:41:37 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -67 
07:41:42 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -70 
07:42:23 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -64 
07:42:28 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -66 
07:42:59 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -64 
07:43:04 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -65 
07:43:36 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
07:43:41 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
07:44:23 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -70 
07:44:28 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -69 
07:44:59 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
07:45:04 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
07:45:36 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
07:45:41 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
07:46:23 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -66 
07:46:28 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -68 
07:46:59 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -69 
07:47:04 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -70 
07:47:36 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
07:47:41 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
07:48:23 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -62 
07:48:28 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -63 
07:49:00 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:49:05 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:49:36 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:49:41 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -63 
07:50:23 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -61 
07:50:28 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
07:51:00 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -63 
07:51:05 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
07:51:36 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:51:41 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -62 
07:52:24 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -63 
07:52:29 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
07:53:00 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -61 
07:53:06 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
07:53:37 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
07:53:42 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
07:54:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -63 
07:54:30 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -65 
07:55:01 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -66 
07:55:06 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -69 
07:55:37 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
07:55:42 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -69 
07:56:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -67 
07:56:30 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -68 
07:57:01 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -69 
07:57:06 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -71 
07:57:38 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -70 
07:57:43 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -72 
07:58:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -66 
07:58:30 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
07:59:01 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
07:59:06 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -68 
07:59:38 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -64 
07:59:43 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -66 
08:00:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -64 
08:00:30 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
08:01:01 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -66 
08:01:06 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
08:01:38 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -69 
08:01:43 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -72 
08:02:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -62 
08:02:30 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
08:03:01 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
08:03:06 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -68 
08:03:38 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -69 
08:03:43 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -70 
08:04:25 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -68 
08:04:30 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -69 
08:05:02 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -59 
08:05:07 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -63 
08:05:38 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -60 
08:05:43 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -63 
08:06:26 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -62 
08:06:31 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -65 
08:07:02 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -67 
08:07:07 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -69 
08:07:39 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
08:07:44 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -68 
08:08:26 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -63 
08:08:31 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
08:09:02 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -66 
08:09:07 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
08:09:39 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -65 
08:09:44 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -66 
08:10:26 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -63 
08:10:31 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -67 
08:10:37 wireless,info A8:CA:77:3D:3B:E7@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -53 
08:10:40 wireless,info A8:CA:77:3D:3B:E7@BlueWifi: connected, signal strength -44 
08:11:03 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -63 
08:11:08 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
08:11:10 wireless,info A8:CA:77:3D:3B:E7@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -44 
08:11:23 wireless,info A8:CA:77:3D:3B:E7@BlueWifi: connected, signal strength -45 
08:11:29 wireless,info 08:12:A5:78:61:2A@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -51 
08:11:32 wireless,info 08:12:A5:78:61:2A@BlueWifi: connected, signal strength -51 
08:11:39 wireless,info 84:F3:EB:63:F5:36@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -64 
08:11:39 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: connected, signal strength -61 
08:11:42 wireless,info 84:F3:EB:63:F5:36@BlueWifi: connected, signal strength -64 
08:11:44 wireless,info 10:27:F5:BC:3D:7C@BlueWifi: disconnected, unicast key exchange timeout, signal strength -64 
08:11:53 wireless,info A8:CA:77:3D:3B:E7@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -45 
08:11:57 wireless,info 84:F3:EB:63:F5:36@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -64 
08:11:59 wireless,info 9C:9C:1F:86:5B:DB@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -45 
08:11:59 wireless,info 9C:9C:1F:86:5B:DB@BlueWifi: connected, signal strength -42 
08:11:59 wireless,info 10:CE:02:99:6E:06@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -57 
08:12:02 wireless,info 08:12:A5:78:61:2A@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -51 
08:12:02 wireless,info 10:CE:02:99:6E:06@BlueWifi: connected, signal strength -61 
08:12:03 wireless,info 40:A2:DB:F5:7F:2B@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -31 
08:12:03 wireless,info C4:DD:57:35:D7:DF@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -63 
08:12:04 wireless,info 50:02:91:54:E1:C8@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -69 
08:12:05 wireless,info 84:F3:EB:63:F5:36@BlueWifi: connected, signal strength -66 
08:12:05 wireless,info C4:DD:57:35:D7:DF@BlueWifi: connected, signal strength -57 
08:12:05 wireless,info 40:A2:DB:F5:7F:2B@BlueWifi: connected, signal strength -30 
08:12:06 wireless,info CC:50:E3:03:57:00@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -60 
08:12:06 wireless,info A8:CA:77:3D:3B:E7@BlueWifi: connected, signal strength -45 
08:12:06 wireless,info 50:02:91:54:E1:C8@BlueWifi: connected, signal strength -67 
08:12:07 wireless,info E8:68:E7:41:4D:2B@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -70 
08:12:07 wireless,info CC:50:E3:03:57:00@BlueWifi: connected, signal strength -55 
08:12:09 wireless,info E8:68:E7:41:4D:2B@BlueWifi: connected, signal strength -64 
08:12:09 wireless,info 70:03:9F:68:DF:3F@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -62 
08:12:10 wireless,info CC:50:E3:57:B2:92@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -72 
08:12:11 wireless,info 70:03:9F:68:DF:3F@BlueWifi: connected, signal strength -55 
08:12:12 wireless,info CC:50:E3:57:B2:92@BlueWifi: connected, signal strength -71 
08:12:15 wireless,info 08:12:A5:78:61:2A@BlueWifi: connected, signal strength -51 
08:12:18 wireless,info C4:DD:57:35:D7:DF@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -57 
08:12:18 wireless,info 9C:9C:1F:86:5B:DB@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -42 
08:12:18 wireless,info 9C:9C:1F:86:5B:DB@BlueWifi: connected, signal strength -41 
08:12:20 wireless,info C4:DD:57:35:D7:DF@BlueWifi: connected, signal strength -56 
08:12:20 wireless,info 84:F3:EB:63:F5:36@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -66 
08:12:22 wireless,info 44:00:49:57:7E:AE@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -62 
08:12:22 wireless,info 44:00:49:2D:17:ED@BlueWifi: disconnected, received deauth: sending station leaving (3), signal strength -53 
08:12:24 wireless,info 84:F3:EB:63:F5:36@BlueWifi: connected, signal strength -64 
08:12:24 wireless,info 70:03:9F:68:DF:3F@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -55 
08:12:25 wireless,info 50:02:91:54:E1:C8@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -67 
08:12:25 wireless,info 44:00:49:57:7E:AE@BlueWifi: connected, signal strength -51 
08:12:25 wireless,info 3C:61:05:8F:FD:64@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -70 
08:12:25 wireless,info 44:00:49:2D:17:ED@BlueWifi: connected, signal strength -48 
08:12:25 wireless,info 3C:61:05:8F:FD:64@BlueWifi: connected, signal strength -70 
08:12:25 wireless,info CC:50:E3:03:57:00@BlueWifi: disconnected, received disassoc: sending station leaving (8), signal strength -55 

Perhaps similar to some posts in here and here?

Config:

# sep/05/2025 09:07:51 by RouterOS 6.49.19
# software id = [Redacted]
#
# model = RBcAPL-2nD
# serial number = [Redacted]
/interface bridge
add name=bridge1 protocol-mode=none vlan-filtering=yes
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
add authentication-types=wpa2-psk mode=dynamic-keys name=Green supplicant-identity="" wpa2-pre-shared-key=[Redacted]
add authentication-types=wpa2-psk mode=dynamic-keys name=Blue supplicant-identity="" wpa2-pre-shared-key=[Redacted]
add authentication-types=wpa2-psk mode=dynamic-keys name=Purple supplicant-identity="" wpa2-pre-shared-key=[Redacted]
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n disabled=no mode=ap-bridge name=GreenWifi security-profile=Green ssid=Green
add disabled=no keepalive-frames=disabled mac-address=0A:55:31:80:70:93 master-interface=GreenWifi multicast-buffering=disabled name=PurpleWifi security-profile=Purple ssid=Purple wds-cost-range=0 wds-default-cost=0 wps-mode=disabled
add disabled=no keepalive-frames=disabled mac-address=0A:55:31:80:70:92 master-interface=GreenWifi multicast-buffering=disabled name=BlueWifi security-profile=Blue ssid=Blue wds-cost-range=0 wds-default-cost=0 wps-mode=disabled
/user group
set full policy=local,telnet,ssh,ftp,reboot,read,write,policy,test,winbox,password,web,sniff,sensitive,api,romon,dude,tikapp
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged interface=GreenWifi
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged interface=BlueWifi pvid=40
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged interface=PurpleWifi pvid=30
/ip neighbor discovery-settings
set discover-interface-list=!dynamic
/interface bridge vlan
add bridge=bridge1 tagged=ether1,bridge1 vlan-ids=30
add bridge=bridge1 tagged=ether1,bridge1 vlan-ids=40
/ip dhcp-client
add disabled=no interface=bridge1
/system clock
set time-zone-name=[Redacted]
/system logging
add action=disk topics=info

Any help appreciated!

[jaclaz]

From the log you posted, I notice a few things (maybe relevant, maybe not).

1. the "main" troublemaker is clearly the device with MAC 10:27:F5:BC:3D:7C, in the snippet you posted it has some 170 disconnections/connections, while all the other devices have 2, 4 or 6
2. the disconnection messages are different, the device above has ALL of them "unicast key exchange timeout", whilst the other ones have either of "received deauth" or "received disassoc"
3. a "same" device when disconnected (and reconnected) multiple times has always the "same " disconnection message

The "unicast key exchange timeout" seemingly means "wrong password", see:

14 years lasting BUG - disconnected, unicast key exchange timeout

I dont understand, how it’s possible to manufacture so called router os and still have this HUGE, 14 years nover solved problem? How to fix it??? I have Shelly device, it connects to wifi and after few seconds receives “disconnected, unicast key exchange timeout, signal strength -52”. WHy this bug is not resolved and this IS bug 100%. Why i NEVER ever had any problems with ANY of my used non MikroTIk routers exept this one, Chateau LTE12. Im not even talking about super duper unstable 5g wifi…

The “disconnected, received disassoc: sending station leaving (8)” and the "received disassoc: sending station leaving (8)" could be almost anything, but they appear to be originated by the stations (clients), maybe the issues with MAC 10:27:F5:BC:3D:7C saturate the cAP Lite and makes it not responding, and then the client decides to disconnect and try again.

The MAC 10:27:F5 seems to be a TP-Link device, can you detail which one?

(anecdata only, but after having used in the SAME spot a WA801ND, and then a WA901ND for years I upgraded to a WA1201 and the trouble began, untill I took the plunge and installed OpenWRT on it and everything went back to normal.)

For troubleshooting, I would add a "GrayWiFI" SSID and add to it only the MAC 10:27:F5:BC:3D:7C device and see what happens.

[erlinden]

I prefer to use 20MHz bandwidth, could you set that explicitly.
Next, try to disable 802.11b and leave band=2ghz-g/n
Have you already performed a scan on this radio? And from the findings set a fixed frequency?
The number of clients is a bit high, are there any that can be connected through wire (i.e. the printers)?

As the cAP lite is the absolute entry level (2GHz only), have you considered upgrading hardware?

[holvoetn]

Or strategically place a second one to share load a bit ?