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Hello, I have a WS-24-400A Switch that is rebooting randomly but many times a day, when it does it posts the following to the Log:


Dec 31 15:00:06 netonix: 1.4.6 on WS-24-400A
Dec 31 15:00:11 system: Setting MAC address from flash configuration: EC:13:B3:01:87:B0
Dec 31 15:00:13 system: starting ntpclient
Dec 31 15:00:14 admin: adding lan (eth0) to firewall zone lan
Dec 31 15:00:26 STP: set port 1 to discarding
Dec 31 15:00:26 STP: set port 2 to discarding
Dec 31 15:00:27 STP: set port 5 to discarding
Dec 31 15:00:27 STP: set port 6 to discarding
Dec 31 15:00:27 STP: set port 8 to discarding
Dec 31 15:00:27 STP: set port 9 to discarding
Dec 31 15:00:27 STP: set port 10 to discarding
Dec 31 15:00:27 STP: set port 11 to discarding
Dec 31 15:00:27 STP: set port 12 to discarding
Dec 31 15:00:27 STP: set port 19 to discarding
Dec 31 15:00:27 STP: set port 20 to discarding
Dec 31 15:00:30 STP: set port 20 to learning
Dec 31 15:00:30 STP: set port 20 to forwarding
Dec 31 15:00:30 STP: set port 19 to learning
Dec 31 15:00:30 STP: set port 19 to forwarding
Dec 31 15:00:30 STP: set port 12 to learning
Dec 31 15:00:30 STP: set port 12 to forwarding
Dec 31 15:00:30 STP: set port 11 to learning
Dec 31 15:00:30 STP: set port 11 to forwarding
Dec 31 15:00:30 STP: set port 10 to learning
Dec 31 15:00:30 STP: set port 10 to forwarding
Dec 31 15:00:30 dropbear[759]: Running in background
Dec 31 15:00:30 STP: set port 9 to learning
Dec 31 15:00:30 STP: set port 9 to forwarding
Dec 31 15:00:30 STP: set port 8 to learning
Dec 31 15:00:30 STP: set port 8 to forwarding
Dec 31 15:00:30 STP: set port 6 to learning
Dec 31 15:00:30 STP: set port 6 to forwarding
Dec 31 15:00:30 STP: set port 5 to learning
Dec 31 15:00:30 STP: set port 5 to forwarding
Dec 31 15:00:30 STP: set port 2 to learning
Dec 31 15:00:30 STP: set port 2 to forwarding
Dec 31 15:00:30 STP: set port 1 to learning
Dec 31 15:00:30 STP: set port 1 to forwarding
Dec 31 15:00:31 Port: link state changed to 'up' (1G) on port 23
Dec 31 15:00:31 STP: set port 23 to discarding
Dec 31 15:00:31 STP: set port 23 to learning
Dec 31 15:00:31 STP: set port 23 to forwarding
Dec 31 15:00:34 system: starting ntpclient
Jul 10 15:47:25 switch[826]: Detected cold boot
Jul 10 15:47:26 Port: link state changed to 'down' on port 6
Jul 10 15:47:26 STP: set port 6 to discarding
Jul 10 15:47:26 Port: link state changed to 'down' on port 8
Jul 10 15:47:26 STP: set port 8 to discarding
Jul 10 15:47:26 Port: link state changed to 'down' on port 10
Jul 10 15:47:26 STP: set port 10 to discarding
Jul 10 15:47:26 Port: link state changed to 'down' on port 11
Jul 10 15:47:26 STP: set port 11 to discarding
Jul 10 15:47:26 Port: link state changed to 'down' on port 12
Jul 10 15:47:26 STP: set port 12 to discarding
Jul 10 15:47:26 switch[826]: Port 2 has link while turning on PoE
Jul 10 15:47:26 switch[826]: PoE enabled on port 2, PoE Smart is starting cable check
Jul 10 15:47:26 switch[826]: Port 6 has link while turning on PoE
Jul 10 15:47:26 Port: link state changed to 'down' on port 2
Jul 10 15:47:26 STP: set port 2 to discarding
Jul 10 15:47:26 switch[826]: PoE enabled on port 6, PoE Smart is starting cable check
Jul 10 15:47:26 switch[826]: PoE enabled on port 8, PoE Smart is starting cable check
Jul 10 15:47:26 switch[826]: PoE enabled on port 10, PoE Smart is starting cable check
Jul 10 15:47:27 switch[826]: PoE enabled on port 11, PoE Smart is starting cable check
Jul 10 15:47:27 switch[826]: PoE enabled on port 12, PoE Smart is starting cable check
Jul 10 15:47:27 switch[826]: PoE enabled on port 14, PoE Smart is starting cable check
Jul 10 15:47:31 switch[826]: Port 2 cable check results: Open, Abnormal termination, Open, Open
Jul 10 15:47:31 switch[826]: Port 2 passed PoE Smart cable check, turning on power
Jul 10 15:47:31 switch[826]: Port 6 cable check results: Ok, Ok, Short, Short
Jul 10 15:47:31 switch[826]: Port 6 passed PoE Smart cable check, turning on power
Jul 10 15:47:31 switch[826]: Port 8 cable check results: Ok, Ok, Short, Short
Jul 10 15:47:31 switch[826]: Port 8 passed PoE Smart cable check, turning on power
Jul 10 15:47:31 switch[826]: Port 10 cable check results: Ok, Ok, Abnormal termination, Abnormal termination
Jul 10 15:47:31 switch[826]: Port 10 passed PoE Smart cable check, turning on power
Jul 10 15:47:31 switch[826]: Port 11 cable check results: Ok, Ok, Short, Short
Jul 10 15:47:31 switch[826]: Port 11 passed PoE Smart cable check, turning on power
Jul 10 15:47:31 switch[826]: Port 14 cable check results: Open, Open, Open, Open
Jul 10 15:47:31 switch[826]: Port 14 passed PoE Smart cable check, turning on power
Jul 10 15:47:32 switch[826]: Port 12 cable check results: Ok, Ok, Short, Short
Jul 10 15:47:32 switch[826]: Port 12 passed PoE Smart cable check, turning on power
Jul 10 15:47:34 Port: link state changed to 'up' (1G) on port 2
Jul 10 15:47:34 STP: set port 2 to discarding
Jul 10 15:47:37 STP: set port 2 to learning
Jul 10 15:47:37 STP: set port 2 to forwarding
Jul 10 15:48:37 Port: link state changed to 'up' (100M-F) on port 11
Jul 10 15:48:37 STP: set port 11 to discarding
Jul 10 15:48:39 STP: set port 11 to learning
Jul 10 15:48:39 STP: set port 11 to forwarding
Jul 10 15:48:39 Port: link state changed to 'up' (100M-F) on port 8
Jul 10 15:48:39 STP: set port 8 to discarding
Jul 10 15:48:41 Port: link state changed to 'up' (100M-F) on port 12
Jul 10 15:48:41 STP: set port 12 to discarding
Jul 10 15:48:41 Port: link state changed to 'up' (100M-F) on port 6
Jul 10 15:48:41 STP: set port 6 to discarding
Jul 10 15:48:42 STP: set port 8 to learning
Jul 10 15:48:42 STP: set port 8 to forwarding
Jul 10 15:48:43 STP: set port 6 to learning
Jul 10 15:48:43 STP: set port 6 to forwarding
Jul 10 15:48:43 STP: set port 12 to learning
Jul 10 15:48:43 STP: set port 12 to forwarding
Jul 10 15:49:16 Port: link state changed to 'up' (100M-F) on port 10
Jul 10 15:49:16 STP: set port 10 to discarding
Jul 10 15:49:18 STP: set port 10 to learning
Jul 10 15:49:18 STP: set port 10 to forwarding
Jul 10 15:51:18 Port: link state changed to 'down' on port 19
Jul 10 15:51:18 STP: set port 19 to discarding


It drops all connections and then comes back online, Any ideas?

Wade

My crystal ball is no better than yours. :)

I would check the obvious such as insufficient power, is it plugged into a UPS and if so what model is it?

Could be ground current if tower grounds are not bonded properly to electrical service grounds?

Beyond that you could swap out with a spare and see if problem stays then you know it is environmentally and if not then RMA it.

I would also upgrade the firmware, not that I think that is the issue but it is out of date.