Below (headed "AP") is part of a a console log from an RB532. It's a AP on a point-to-point link to the card on another 532 referred to in the log. Also (headed "Station") is the corresponding part of the log from the Station.

This has been happening for several months. Can anyone suggest what might be going on?

AP

jan/14 15:12:54 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/14 15:12:55 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/15 17:21:54 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/15 17:21:54 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/15 23:50:59 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/15 23:50:59 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/16 06:44:52 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/16 06:44:52 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/17 01:43:22 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/17 01:43:22 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/18 23:49:24 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/18 23:49:24 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/19 07:16:49 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/19 07:16:49 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/19 13:36:11 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/19 13:36:11 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/19 19:59:56 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/19 19:59:56 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/21 05:04:28 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/21 05:04:28 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/21 05:05:52 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/21 05:05:52 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/22 18:19:16 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/22 18:19:16 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/23 07:05:23 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/23 07:05:23 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/24 02:26:27 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/24 02:26:27 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/24 22:10:19 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/24 22:10:19 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/24 22:11:21 system,info,account user admin logged in from 10.100.3.2 via
winbox
jan/24 22:12:07 system,info,account user admin logged out from 10.100.3.2 via
winbox
jan/25 04:44:39 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/25 04:44:39 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/25 17:05:17 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/25 17:05:18 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/26 12:58:54 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/26 12:58:54 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/26 19:27:19 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/26 19:27:20 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/27 09:14:02 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/27 09:14:02 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/27 15:35:42 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/27 15:35:42 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/27 15:37:18 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/27 15:37:18 wireless,info 00:80:48:3D:5A:40@wlan1: connected
jan/27 22:15:34 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected,
reassociating
jan/27 22:15:34 wireless,info 00:80:48:3D:5A:40@wlan1: connected
12:11:24 wireless,info 00:80:48:3D:5A:40@wlan1: disconnected, reassociating
12:11:24 wireless,info 00:80:48:3D:5A:40@wlan1: connected

Station

jan/24 17:20:37 wireless,info 00:40:F4:F3:69:01@wlan3: disconnected,
extensive data loss
jan/24 22:08:28 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/24 22:08:30 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:08:42 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:08:54 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:09:06 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:09:18 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:09:30 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:09:43 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:09:55 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:10:07 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/24 22:10:15 system,info,account user admin logged in from 10.0.3.2 via
winbox
jan/24 22:10:19 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
jan/24 22:11:09 system,info,account user admin logged out from 10.0.3.2 via
winbox
jan/25 02:46:10 wireless,info 00:80:48:3D:5A:47@wlan2: disconnected,
extensive data loss
jan/25 02:46:11 pppoe,ppp,info,account adrian logged out, 530297 52271232
531078760 415190 524857
jan/25 02:46:11 pppoe,ppp,info <pppoe-adrian>: terminating... - peer is not
responding
jan/25 02:46:11 pppoe,ppp,info <pppoe-adrian>: disconnected
jan/25 02:46:15 wireless,info 00:80:48:3D:5A:5B@wlan2: disconnected,
extensive data loss
jan/25 02:46:16 pppoe,ppp,info,account trevor logged out, 65631 1508638
3268468 19457 24183
jan/25 02:46:16 pppoe,ppp,info <pppoe-trevor>: terminating... - peer is not
responding
jan/25 02:46:16 pppoe,ppp,info <pppoe-trevor>: disconnected
jan/25 02:47:01 wireless,info 00:80:48:3D:5A:47@wlan2: connected
jan/25 02:47:04 pppoe,info PPPoE connection established from
00:80:48:3D:5A:47
jan/25 02:47:04 pppoe,ppp,info <pppoe-0>: waiting for call...
jan/25 02:47:05 pppoe,ppp,info <pppoe-0>: authenticated
jan/25 02:47:05 pppoe,ppp,info <pppoe-0>: connected
jan/25 02:47:05 pppoe,ppp,info,account adrian logged in, 10.100.3.8
jan/25 02:47:06 wireless,info 00:80:48:3D:5A:5B@wlan2: connected
jan/25 02:47:14 pppoe,info PPPoE connection established from
00:80:48:3D:5A:5B
jan/25 02:47:14 pppoe,ppp,info <pppoe-0>: waiting for call...
jan/25 02:47:15 pppoe,ppp,info <pppoe-0>: authenticated
jan/25 02:47:15 pppoe,ppp,info <pppoe-0>: connected
jan/25 02:47:15 pppoe,ppp,info,account trevor logged in, 10.100.3.4
jan/25 04:43:25 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/25 04:43:27 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 04:43:39 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 04:43:51 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 04:44:03 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 04:44:15 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 04:44:27 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 04:44:39 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
jan/25 17:04:27 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/25 17:04:29 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 17:04:41 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 17:04:53 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 17:05:05 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/25 17:05:18 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
jan/26 12:58:04 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/26 12:58:06 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 12:58:18 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 12:58:30 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 12:58:42 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 12:58:54 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
jan/26 19:26:17 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/26 19:26:19 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 19:26:32 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 19:26:44 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 19:26:56 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 19:27:08 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/26 19:27:19 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
jan/26 19:35:08 system,info,account user admin logged in from 10.0.3.2 via
winbox
jan/26 19:39:58 system,info,account user admin logged out from 10.0.3.2 via
winbox
jan/27 09:13:36 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/27 09:13:38 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 09:13:50 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 09:14:02 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
jan/27 12:06:30 system,info,account user admin logged in from 10.0.3.2 via
winbox
jan/27 12:16:31 system,info,account user admin logged out from 10.0.3.2 via
winbox
jan/27 15:35:16 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/27 15:35:18 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 15:35:30 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 15:35:42 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
jan/27 15:36:52 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/27 15:36:54 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 15:37:06 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 15:37:18 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
jan/27 17:17:47 dhcp,info,debug dhcp1 deassigned 10.3.6.10 from
00:40:F4:F3:69:01
jan/27 22:14:07 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no
beacons
jan/27 22:14:09 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 22:14:21 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 22:14:33 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 22:14:46 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 22:14:58 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 22:15:10 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 22:15:22 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect,
join timeout
jan/27 22:15:34 wireless,info 00:80:48:3D:5A:60@wlan1 established connection
on 2452, SSID Clova
12:10:34 wireless,info 00:80:48:3D:5A:60@wlan1: lost connection, no beacons
12:10:36 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect, join
timeout
12:10:48 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect, join
timeout
12:11:00 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect, join
timeout
12:11:12 wireless,info 00:80:48:3D:5A:60@wlan1: failed to connect, join
timeout
12:11:24 wireless,info 00:80:48:3D:5A:60@wlan1 established connection on 2452,

Ok guys, it's still happening on a regular basis two or three times a day just for a couple of minutes each time.

The station reports "lost connection no beacons" and then "failed to connect, join timeout" for a couple of minutes before re-establishing contact. The AP reports "disconnected, reassociating" and then "connected" at the end of the same period but has nothing for the moment the station reports loss of beacons.

Anyone any ideas?

Wireless debug logs are described here,
http://wiki.mikrotik.com/wiki/Wireless_Debug_Logs

[admin@Mt-Kiwi] log> print
02:15:06 wireless,debug 02:80:48:3D:5A:5A: on 2437 SSID Office caps 0x421
rates 0xff0f basic 0xf MT: yes
02:15:06 wireless,debug wlan1: must select network
02:15:06 wireless,debug wlan1: 00:80:48:3D:5A:60 failed to join recently
02:15:06 wireless,debug wlan1: no network that satisfies connect-list, by
default choose with strongest signal
02:15:06 wireless,debug wlan1: failed to select network
02:15:06 wireless,debug wlan1: delaying scanning
02:15:07 wireless,debug wlan1: STA starts scanning
02:15:09 wireless,debug wlan1: STA scan over, results:
02:15:09 wireless,debug 00:80:48:3D:5A:6A: on 2412 SSID Totaranui caps 0x431
rates 0xff0f basic 0x100 MT: yes
02:15:09 wireless,debug 02:80:48:3D:5A:6A: on 2412 SSID Jenny caps 0x421
rates 0xff0f basic 0x100 MT: yes
02:15:09 wireless,debug 00:80:48:3D:5A:64: on 2412 SSID Manaroa caps 0x431
rates 0xff0f basic 0xf MT: yes
02:15:09 wireless,debug 00:80:48:3D:5A:60: on 2452 SSID Clova caps 0x421
rates 0xff0f basic 0x100 MT: yes
02:15:09 wireless,debug 00:80:48:3D:5A:5A: on 2437 SSID Clova Cribs caps
0x421 rates 0xff0f basic 0xf MT: yes
02:15:09 wireless,debug 02:80:48:3D:5A:5A: on 2437 SSID Office caps 0x421
rates 0xff0f basic 0xf MT: yes
02:15:09 wireless,debug wlan1: must select network
02:15:09 wireless,debug wlan1: 00:80:48:3D:5A:60 failed to join recently
02:15:09 wireless,debug wlan1: no network that satisfies connect-list, by
default choose with strongest signal
02:15:09 wireless,debug wlan1: failed to select network
-- [Q quit|D dump|down]

OK, here's the debug log from the station for an incident last night.

I tried to get the equivalent entry from the AP. The Winbox > log merely reports a client disconnect and reconnect for this time on this interface only.

So I'm none the wiser.

[admin@Mt-Kiwi] log> print
02:15:06 wireless,debug 02:80:48:3D:5A:5A: on 2437 SSID Office caps 0x421
rates 0xff0f basic 0xf MT: yes
02:15:06 wireless,debug wlan1: must select network
02:15:06 wireless,debug wlan1: 00:80:48:3D:5A:60 failed to join recently
02:15:06 wireless,debug wlan1: no network that satisfies connect-list, by
default choose with strongest signal
02:15:06 wireless,debug wlan1: failed to select network
02:15:06 wireless,debug wlan1: delaying scanning
02:15:07 wireless,debug wlan1: STA starts scanning
02:15:09 wireless,debug wlan1: STA scan over, results:
02:15:09 wireless,debug 00:80:48:3D:5A:6A: on 2412 SSID Totaranui caps 0x431
rates 0xff0f basic 0x100 MT: yes
02:15:09 wireless,debug 02:80:48:3D:5A:6A: on 2412 SSID Jenny caps 0x421
rates 0xff0f basic 0x100 MT: yes
02:15:09 wireless,debug 00:80:48:3D:5A:64: on 2412 SSID Manaroa caps 0x431
rates 0xff0f basic 0xf MT: yes
02:15:09 wireless,debug 00:80:48:3D:5A:60: on 2452 SSID Clova caps 0x421
rates 0xff0f basic 0x100 MT: yes
02:15:09 wireless,debug 00:80:48:3D:5A:5A: on 2437 SSID Clova Cribs caps
0x421 rates 0xff0f basic 0xf MT: yes
02:15:09 wireless,debug 02:80:48:3D:5A:5A: on 2437 SSID Office caps 0x421
rates 0xff0f basic 0xf MT: yes
02:15:09 wireless,debug wlan1: must select network
02:15:09 wireless,debug wlan1: 00:80:48:3D:5A:60 failed to join recently
02:15:09 wireless,debug wlan1: no network that satisfies connect-list, by
default choose with strongest signal
02:15:09 wireless,debug wlan1: failed to select network
-- [Q quit|D dump|down]

OK, here's the debug log from the station for an incident last night.

I tried to get the equivalent entry from the AP. The Winbox > log merely reports a client disconnect and reconnect for this time on this interface only.

So I'm none the wiser.

-----------------------------------------------------------

i have the same problems too
im using mikrotik RB 153 and have that problem too ....
how to prevent or to fix the problem???
please reply my message as soon as possible ....
thx b4
GBU

hi ...
i have a problems with mikrotik RB153 and the problems like this :

on 2242 SSID caps 0x431 rates 0xff0f basic 0x100 MT:yes
wlan2 must select network
wlan2 no network that satisfies connect-list, by default choose with strongest signal
wlan2 failed to select network
wlan2 delaying scanning
wlan2: STA starts scanning
wlan2: STA scan over, result

what the problems with that???
the problems on AP or CPE???
please reply my quote cos i really need to fix it as soon as possible
thx b4
GBU

Did you ever manage to solve this issue? I am having the same problem

You have interference or fresnel issues.

Thanks for the reply.

How can i correct this issue?
What is fresnal issues?

-Setup-

RB411 Station Version 4.10

Rb433 AP Bridge Version 4.11

Distance is about 800m

I also have another RB433 AP mounted on the same pole as the station, but set at a different frequency.

Read up on wireless basics http://en.wikipedia.org/wiki/Fresnel_zone