908e 3rd gen randomly rebooting

[stormonts]

We have a 908e 3rd gen that at first seemed to suddenly lose connectivity for a brief period at the same time each day.  We then upgraded to T900E3A-R13-5-1-E.biz and now the router has started to randomly reboot.  It is plugged into a PDU which is plugged into a UPS and both og those units are fine so power doesn't seem to be the issue.  What else can we check?

[jayh]

Take a look at the results of "show event-history" for anything unusual.

Also "show flash" for any exception reports.

I suspect that you'll probably need to open a support case with Adtran eventually. It sounds like it could be hardware-related.

[stormonts]

I don't see any exception reports in flash:

#show flash

       26769064 9243916-2R100906.biz

           7324 startup-config

           7324 startup-config.bak

       29218472 T900E3A-R13-5-1-E.biz

(dir)       400 Tones

56684544 bytes used*, 40435712 available**, 97120256 total

The event history is below.

show event-history

LOG FILE

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

1970.01.01 00:00:19 LICENSING License  has been deactivated.

2019.08.14 15:25:08 OPERATING_SYSTEM.USER Created user 'admin'

2019.08.14 15:25:08 OPERATING_SYSTEM.USER Created user '<username removed>'

2019.08.14 15:25:08 OPERATING_SYSTEM.USER Created user '<username removed>'

2019.08.14 15:25:10 ETHERNET_INTERFACE.eth 0/1 link up

2019.08.14 15:25:10 OPERATING_SYSTEM Cold Start

2019.08.14 15:25:11 ETHERNET_INTERFACE.eth 0/1 speed is 100Mbps, full duplex

2019.08.14 15:25:11 QOS.INTERFACE QoS policy 'Template-8' requires 100000 kbps of bandwidth and 100000 kbps is now available for interface eth 0/1. The QoS policy for this port has been forced ACTIVE.

2019.08.14 15:25:11 INTERFACE_STATUS.eth 0/1 changed state to up

2019.08.14 15:25:12 ETHERNET_INTERFACE.eth 0/2 auto-negotiation complete

2019.08.14 15:25:12 ETHERNET_INTERFACE.eth 0/2 link up

2019.08.14 15:25:12 NETMON.TRACK TrackPingTest TrackPingTest changed from pass to fail.

2019.08.14 15:25:12 ETHERNET_INTERFACE.eth 0/2 auto-negotiation in progress

2019.08.14 15:25:12 ETHERNET_INTERFACE.eth 0/2 link down

2019.08.14 15:25:13 ETHERNET_INTERFACE.eth 0/2 auto-negotiation complete

2019.08.14 15:25:13 ETHERNET_INTERFACE.eth 0/2 link up

2019.08.14 15:25:13 ETHERNET_INTERFACE.eth 0/2 speed is 100Mbps, full duplex

2019.08.14 15:25:14 INTERFACE_STATUS.eth 0/2 changed state to up

2019.08.14 15:25:14 NETMON.TRACK TrackPingTest TrackPingTest changed from fail to pass.

2019.08.14 15:25:20 NTP 4.2.8p6: Starting

2019.08.14 15:25:20 NTP Command line: ntpd -l ntpd.log

2019.08.14 15:25:20 NTP Adding interface (v6wildcard, ::), refid: 1256657718

2019.08.14 15:25:20 NTP Listen and drop on 0 v6wildcard [::]:123

2019.08.14 15:25:20 NTP Adding interface (v4wildcard, 0.0.0.0), refid: 0

2019.08.14 15:25:20 NTP Listen and drop on 1 v4wildcard 0.0.0.0:123

2019.08.14 15:25:20 NTP Adding interface (Loopback, 127.0.0.1), refid: 2130706433

2019.08.14 15:25:20 NTP Adding interface (eth 0/1, 65.122.27.34), refid: 1098521378

2019.08.14 15:25:20 NTP Adding interface (eth 0/2, 172.22.32.4), refid: 2887131140

2019.08.14 15:25:20 NTP frequency initialized 8.340 PPM from .ntp.drift

2019.08.14 15:25:21 NTP time reset +52910.936711 s

2019.08.15 08:54:59 OPERATING_SYSTEM.SESSION User login <username removed> OK level [1] on portal SSH 0 (172.21.133.22:57363)

[jayh]

I'd open a support case with Adtran. Nothing obvious in the logs.