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Hi all,

In the last days i'm facing unexpectable port down and the poe devices reboots.

WS-8-150-AC
Firmware Version: 1.5.12
(updated before a week)
Board Rev: F

Port 1: Cambium ePMP 24V 0.75A
Port 2: Cambium ePMP 48V 0.75A
Port 3: Cambium ePMP 48V 0.75A

In all cases I found that the devices had lost power and rebooted. For long time i had no problems and everything worked without issues.
What do you suggest? Downgrade the firmware?

Here is my logs:
Mar 25 10:19:43 Port: link state changed to 'down' on port 1
Mar 25 10:19:43 STP: msti 0 set port 1 to discarding
Mar 25 10:19:46 Port: link state changed to 'up' (1G) on port 1
Mar 25 10:19:46 STP: msti 0 set port 1 to discarding
Mar 25 10:19:48 STP: msti 0 set port 1 to learning
Mar 25 10:19:48 STP: msti 0 set port 1 to forwarding
Mar 25 10:20:10 Port: link state changed to 'down' on port 1
Mar 25 10:20:10 STP: msti 0 set port 1 to discarding
Mar 25 10:20:12 Port: link state changed to 'up' (10M-H) on port 1
Mar 25 10:20:12 STP: msti 0 set port 1 to discarding
Mar 25 10:20:17 Port: link state changed to 'down' on port 1
Mar 25 10:20:20 Port: link state changed to 'up' (1G) on port 1
Mar 25 10:20:20 STP: msti 0 set port 1 to discarding
Mar 25 10:20:22 STP: msti 0 set port 1 to learning
Mar 25 10:20:22 STP: msti 0 set port 1 to forwarding
Mar 25 13:18:30 Port: link state changed to 'down' on port 2
Mar 25 13:18:30 STP: msti 0 set port 2 to discarding
Mar 25 13:18:33 Port: link state changed to 'up' (1G) on port 2
Mar 25 13:18:33 STP: msti 0 set port 2 to discarding
Mar 25 13:18:35 STP: msti 0 set port 2 to learning
Mar 25 13:18:35 STP: msti 0 set port 2 to forwarding
Mar 25 13:18:55 Port: link state changed to 'down' on port 2
Mar 25 13:18:55 STP: msti 0 set port 2 to discarding
Mar 25 13:18:57 Port: link state changed to 'up' (1G) on port 2
Mar 25 13:18:57 STP: msti 0 set port 2 to discarding
Mar 25 13:19:00 Port: link state changed to 'down' on port 2
Mar 25 13:19:02 Port: link state changed to 'up' (1G) on port 2
Mar 25 13:19:02 STP: msti 0 set port 2 to discarding
Mar 25 13:19:05 STP: msti 0 set port 2 to learning
Mar 25 13:19:05 STP: msti 0 set port 2 to forwarding
Mar 26 21:31:13 Port: link state changed to 'down' on port 3
Mar 26 21:31:13 STP: msti 0 set port 3 to discarding
Mar 26 21:31:15 Port: link state changed to 'up' (1G) on port 3
Mar 26 21:31:15 STP: msti 0 set port 3 to discarding
Mar 26 21:31:18 STP: msti 0 set port 3 to learning
Mar 26 21:31:18 STP: msti 0 set port 3 to forwarding
Mar 26 21:31:38 Port: link state changed to 'down' on port 3
Mar 26 21:31:38 STP: msti 0 set port 3 to discarding
Mar 26 21:31:40 Port: link state changed to 'up' (1G) on port 3
Mar 26 21:31:40 STP: msti 0 set port 3 to discarding
Mar 26 21:31:42 Port: link state changed to 'down' on port 3
Mar 26 21:31:44 Port: link state changed to 'up' (1G) on port 3
Mar 26 21:31:44 STP: msti 0 set port 3 to discarding
Mar 26 21:31:47 STP: msti 0 set port 3 to learning
Mar 26 21:31:47 STP: msti 0 set port 3 to forwarding

Today we had another unexpectable down on Port 2.

Here the logs:
Mar 28 08:58:31 Port: link state changed to 'down' on port 2
Mar 28 08:58:31 STP: msti 0 set port 2 to discarding
Mar 28 08:58:33 Port: link state changed to 'up' (1G) on port 2
Mar 28 08:58:33 STP: msti 0 set port 2 to discarding
Mar 28 08:58:36 STP: msti 0 set port 2 to learning
Mar 28 08:58:36 STP: msti 0 set port 2 to forwarding
Mar 28 08:58:57 Port: link state changed to 'down' on port 2
Mar 28 08:58:57 STP: msti 0 set port 2 to discarding
Mar 28 08:58:59 Port: link state changed to 'up' (1G) on port 2
Mar 28 08:58:59 STP: msti 0 set port 2 to discarding
Mar 28 08:59:02 Port: link state changed to 'down' on port 2
Mar 28 08:59:04 Port: link state changed to 'up' (1G) on port 2
Mar 28 08:59:04 STP: msti 0 set port 2 to discarding
Mar 28 08:59:07 STP: msti 0 set port 2 to learning
Mar 28 08:59:07 STP: msti 0 set port 2 to forwarding

Also i found that I have similar problems in another Netonix that I put the latest firmware.

WS-6-MINI
Firmware Version: 1.5.12
(updated on Mar 23)
Board Rev: F

Port 3: Cambium ePMP 24V 0.75A
Port 4: Cambium ePMP 24V 0.75A
Port 5: Cambium ePMP 48V 0.75A

Do you suggest to downgrade firmware to 1.5.8? Is that possible?

Here the logs:
Mar 24 00:17:48 Port: link state changed to 'down' on port 3
Mar 24 00:17:48 STP: msti 0 set port 3 to discarding
Mar 24 00:17:51 Port: link state changed to 'up' (1G) on port 3
Mar 24 00:17:51 STP: msti 0 set port 3 to discarding
Mar 24 00:17:53 STP: msti 0 set port 3 to learning
Mar 24 00:17:53 STP: msti 0 set port 3 to forwarding
Mar 24 00:33:07 Port: link state changed to 'down' on port 3
Mar 24 00:33:07 STP: msti 0 set port 3 to discarding
Mar 24 00:33:10 Port: link state changed to 'up' (1G) on port 3
Mar 24 00:33:10 STP: msti 0 set port 3 to discarding
Mar 24 00:33:12 STP: msti 0 set port 3 to learning
Mar 24 00:33:12 STP: msti 0 set port 3 to forwarding
Mar 24 00:35:14 Port: link state changed to 'down' on port 3
Mar 24 00:35:14 STP: msti 0 set port 3 to discarding
Mar 24 00:35:24 Port: link state changed to 'up' (1G) on port 3
Mar 24 00:35:24 STP: msti 0 set port 3 to discarding
Mar 24 00:35:27 STP: msti 0 set port 3 to learning
Mar 24 00:35:27 STP: msti 0 set port 3 to forwarding
Mar 24 00:35:52 Port: link state changed to 'down' on port 3
Mar 24 00:35:52 STP: msti 0 set port 3 to discarding
Mar 24 00:35:55 Port: link state changed to 'up' (1G) on port 3
Mar 24 00:35:55 STP: msti 0 set port 3 to discarding
Mar 24 00:35:57 STP: msti 0 set port 3 to learning
Mar 24 00:35:57 STP: msti 0 set port 3 to forwarding
Mar 24 00:40:21 Port: link state changed to 'down' on port 3
Mar 24 00:40:21 STP: msti 0 set port 3 to discarding
Mar 24 00:40:24 Port: link state changed to 'up' (1G) on port 3
Mar 24 00:40:24 STP: msti 0 set port 3 to discarding
Mar 24 00:40:26 STP: msti 0 set port 3 to learning
Mar 24 00:40:26 STP: msti 0 set port 3 to forwarding
Mar 24 00:49:35 Port: link state changed to 'down' on port 3
Mar 24 00:49:35 STP: msti 0 set port 3 to discarding
Mar 24 00:49:38 Port: link state changed to 'up' (1G) on port 3
Mar 24 00:49:38 STP: msti 0 set port 3 to discarding
Mar 24 00:49:40 STP: msti 0 set port 3 to learning
Mar 24 00:49:40 STP: msti 0 set port 3 to forwarding
Mar 24 00:54:22 Port: link state changed to 'down' on port 3
Mar 24 00:54:22 STP: msti 0 set port 3 to discarding
Mar 24 00:54:24 Port: link state changed to 'up' (1G) on port 3
Mar 24 00:54:24 STP: msti 0 set port 3 to discarding
Mar 24 00:54:27 STP: msti 0 set port 3 to learning
Mar 24 00:54:27 STP: msti 0 set port 3 to forwarding
Mar 24 01:24:51 Port: link state changed to 'down' on port 3
Mar 24 01:24:51 STP: msti 0 set port 3 to discarding
Mar 24 01:24:54 Port: link state changed to 'up' (1G) on port 3
Mar 24 01:24:54 STP: msti 0 set port 3 to discarding
Mar 24 01:24:56 STP: msti 0 set port 3 to learning
Mar 24 01:24:56 STP: msti 0 set port 3 to forwarding
Mar 24 02:03:32 Port: link state changed to 'down' on port 3
Mar 24 02:03:32 STP: msti 0 set port 3 to discarding
Mar 24 02:03:35 Port: link state changed to 'up' (1G) on port 3
Mar 24 02:03:35 STP: msti 0 set port 3 to discarding
Mar 24 02:03:37 STP: msti 0 set port 3 to learning
Mar 24 02:03:37 STP: msti 0 set port 3 to forwarding
Mar 24 02:19:39 Port: link state changed to 'down' on port 3
Mar 24 02:19:39 STP: msti 0 set port 3 to discarding
Mar 24 02:19:41 Port: link state changed to 'up' (1G) on port 3
Mar 24 02:19:41 STP: msti 0 set port 3 to discarding
Mar 24 02:19:44 STP: msti 0 set port 3 to learning
Mar 24 02:19:44 STP: msti 0 set port 3 to forwarding
Mar 24 02:22:34 Port: link state changed to 'down' on port 3
Mar 24 02:22:34 STP: msti 0 set port 3 to discarding
Mar 24 02:22:37 Port: link state changed to 'up' (1G) on port 3
Mar 24 02:22:37 STP: msti 0 set port 3 to discarding
Mar 24 02:22:39 STP: msti 0 set port 3 to learning
Mar 24 02:22:39 STP: msti 0 set port 3 to forwarding
Mar 24 02:22:54 Port: link state changed to 'down' on port 3
Mar 24 02:22:54 STP: msti 0 set port 3 to discarding
Mar 24 02:22:57 Port: link state changed to 'up' (1G) on port 3
Mar 24 02:22:57 STP: msti 0 set port 3 to discarding
Mar 24 02:23:00 STP: msti 0 set port 3 to learning
Mar 24 02:23:00 STP: msti 0 set port 3 to forwarding
Mar 24 02:47:45 Port: link state changed to 'down' on port 3
Mar 24 02:47:45 STP: msti 0 set port 3 to discarding
Mar 24 02:47:47 Port: link state changed to 'up' (1G) on port 3
Mar 24 02:47:47 STP: msti 0 set port 3 to discarding
Mar 24 02:47:50 STP: msti 0 set port 3 to learning
Mar 24 02:47:50 STP: msti 0 set port 3 to forwarding
Mar 24 04:07:46 Port: link state changed to 'down' on port 3
Mar 24 04:07:46 STP: msti 0 set port 3 to discarding
Mar 24 04:07:49 Port: link state changed to 'up' (1G) on port 3
Mar 24 04:07:49 STP: msti 0 set port 3 to discarding
Mar 24 04:07:51 STP: msti 0 set port 3 to learning
Mar 24 04:07:51 STP: msti 0 set port 3 to forwarding
Mar 24 04:27:15 Port: link state changed to 'down' on port 3
Mar 24 04:27:15 STP: msti 0 set port 3 to discarding
Mar 24 04:27:18 Port: link state changed to 'up' (1G) on port 3
Mar 24 04:27:18 STP: msti 0 set port 3 to discarding
Mar 24 04:27:20 STP: msti 0 set port 3 to learning
Mar 24 04:27:20 STP: msti 0 set port 3 to forwarding
Mar 24 04:31:09 Port: link state changed to 'down' on port 3
Mar 24 04:31:09 STP: msti 0 set port 3 to discarding
Mar 24 04:31:11 Port: link state changed to 'up' (1G) on port 3
Mar 24 04:31:11 STP: msti 0 set port 3 to discarding
Mar 24 04:31:14 STP: msti 0 set port 3 to learning
Mar 24 04:31:14 STP: msti 0 set port 3 to forwarding
Mar 24 17:42:37 Port: link state changed to 'down' on port 3
Mar 24 17:42:37 STP: msti 0 set port 3 to discarding
Mar 24 17:42:37 Port: link state changed to 'down' on port 4
Mar 24 17:42:37 STP: msti 0 set port 4 to discarding
Mar 24 17:42:40 Port: link state changed to 'up' (1G) on port 3
Mar 24 17:42:40 STP: msti 0 set port 3 to discarding
Mar 24 17:42:40 Port: link state changed to 'up' (1G) on port 4
Mar 24 17:42:40 STP: msti 0 set port 4 to discarding
Mar 24 17:42:42 STP: msti 0 set port 4 to learning
Mar 24 17:42:42 STP: msti 0 set port 4 to forwarding
Mar 24 17:42:42 STP: msti 0 set port 3 to learning
Mar 24 17:42:42 STP: msti 0 set port 3 to forwarding
Mar 25 11:50:06 Port: link state changed to 'down' on port 2
Mar 25 11:50:06 STP: msti 0 set port 2 to discarding
Mar 25 11:50:08 Port: link state changed to 'up' (100M-F) on port 2
Mar 25 11:50:08 STP: msti 0 set port 2 to discarding
Mar 25 11:50:10 STP: msti 0 set port 2 to learning
Mar 25 11:50:10 STP: msti 0 set port 2 to forwarding
Mar 25 17:42:26 Port: link state changed to 'down' on port 3
Mar 25 17:42:26 STP: msti 0 set port 3 to discarding
Mar 25 17:42:29 Port: link state changed to 'up' (1G) on port 3
Mar 25 17:42:29 STP: msti 0 set port 3 to discarding
Mar 25 17:42:31 STP: msti 0 set port 3 to learning
Mar 25 17:42:31 STP: msti 0 set port 3 to forwarding
Mar 26 17:43:10 Port: link state changed to 'down' on port 3
Mar 26 17:43:10 STP: msti 0 set port 3 to discarding
Mar 26 17:43:12 Port: link state changed to 'up' (1G) on port 3
Mar 26 17:43:12 STP: msti 0 set port 3 to discarding
Mar 26 17:43:15 STP: msti 0 set port 3 to learning
Mar 26 17:43:15 STP: msti 0 set port 3 to forwarding
Mar 27 18:42:19 Port: link state changed to 'down' on port 3
Mar 27 18:42:19 STP: msti 0 set port 3 to discarding
Mar 27 18:42:19 Port: link state changed to 'down' on port 4
Mar 27 18:42:19 STP: msti 0 set port 4 to discarding
Mar 27 18:42:21 Port: link state changed to 'up' (1G) on port 3
Mar 27 18:42:21 STP: msti 0 set port 3 to discarding
Mar 27 18:42:21 Port: link state changed to 'up' (1G) on port 4
Mar 27 18:42:21 STP: msti 0 set port 4 to discarding
Mar 27 18:42:24 STP: msti 0 set port 4 to learning
Mar 27 18:42:24 STP: msti 0 set port 4 to forwarding
Mar 27 18:42:24 STP: msti 0 set port 3 to learning
Mar 27 18:42:24 STP: msti 0 set port 3 to forwarding
Mar 28 07:01:14 Port: link state changed to 'down' on port 3
Mar 28 07:01:14 STP: msti 0 set port 3 to discarding
Mar 28 07:01:20 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:01:20 STP: msti 0 set port 3 to discarding
Mar 28 07:01:23 STP: msti 0 set port 3 to learning
Mar 28 07:01:23 STP: msti 0 set port 3 to forwarding
Mar 28 07:02:24 Port: link state changed to 'down' on port 3
Mar 28 07:02:24 STP: msti 0 set port 3 to discarding
Mar 28 07:02:30 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:02:30 STP: msti 0 set port 3 to discarding
Mar 28 07:02:33 STP: msti 0 set port 3 to learning
Mar 28 07:02:33 STP: msti 0 set port 3 to forwarding
Mar 28 07:03:38 Port: link state changed to 'down' on port 3
Mar 28 07:03:38 STP: msti 0 set port 3 to discarding
Mar 28 07:03:40 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:03:40 STP: msti 0 set port 3 to discarding
Mar 28 07:03:42 Port: link state changed to 'down' on port 3
Mar 28 07:03:45 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:03:45 STP: msti 0 set port 3 to discarding
Mar 28 07:03:47 STP: msti 0 set port 3 to learning
Mar 28 07:03:47 STP: msti 0 set port 3 to forwarding
Mar 28 07:03:55 Port: link state changed to 'down' on port 3
Mar 28 07:03:55 STP: msti 0 set port 3 to discarding
Mar 28 07:03:58 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:03:58 STP: msti 0 set port 3 to discarding
Mar 28 07:04:00 STP: msti 0 set port 3 to learning
Mar 28 07:04:00 STP: msti 0 set port 3 to forwarding
Mar 28 07:04:08 Port: link state changed to 'down' on port 3
Mar 28 07:04:08 STP: msti 0 set port 3 to discarding
Mar 28 07:04:18 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:04:18 STP: msti 0 set port 3 to discarding
Mar 28 07:04:21 STP: msti 0 set port 3 to learning
Mar 28 07:04:21 STP: msti 0 set port 3 to forwarding
Mar 28 07:04:30 Port: link state changed to 'down' on port 3
Mar 28 07:04:30 STP: msti 0 set port 3 to discarding
Mar 28 07:04:48 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:04:48 STP: msti 0 set port 3 to discarding
Mar 28 07:04:50 STP: msti 0 set port 3 to learning
Mar 28 07:04:50 STP: msti 0 set port 3 to forwarding
Mar 28 07:04:55 Port: link state changed to 'down' on port 3
Mar 28 07:04:55 STP: msti 0 set port 3 to discarding
Mar 28 07:05:05 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:05:05 STP: msti 0 set port 3 to discarding
Mar 28 07:05:08 STP: msti 0 set port 3 to learning
Mar 28 07:05:08 STP: msti 0 set port 3 to forwarding
Mar 28 07:05:11 Port: link state changed to 'down' on port 3
Mar 28 07:05:11 STP: msti 0 set port 3 to discarding
Mar 28 07:05:14 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:05:14 STP: msti 0 set port 3 to discarding
Mar 28 07:05:16 STP: msti 0 set port 3 to learning
Mar 28 07:05:16 STP: msti 0 set port 3 to forwarding
Mar 28 07:05:18 Port: link state changed to 'down' on port 3
Mar 28 07:05:18 STP: msti 0 set port 3 to discarding
Mar 28 07:05:21 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:05:21 STP: msti 0 set port 3 to discarding
Mar 28 07:05:23 STP: msti 0 set port 3 to learning
Mar 28 07:05:23 STP: msti 0 set port 3 to forwarding
Mar 28 07:05:28 Port: link state changed to 'down' on port 3
Mar 28 07:05:28 STP: msti 0 set port 3 to discarding
Mar 28 07:05:31 Port: link state changed to 'up' (1G) on port 3
Mar 28 07:05:31 STP: msti 0 set port 3 to discarding
Mar 28 07:05:33 STP: msti 0 set port 3 to learning
Mar 28 07:05:33 STP: msti 0 set port 3 to forwarding