C5 overheating since updating firmware to 2.4.1.1


#1

I have a single C5 on our network that’s throwing a ton of temperature warning errors, hitting 130© since updating to 2.4.1.1. It’s the only one, and rolling back the firmware to 2.4.1 seemed to solve the issue. I’ve got another ten C5’s within a couple blocks and they’re all reporting temps in the 40©s.

Is anyone else running into this? Could it be a temperature sensor issue?

2018-07-18 20:04:06 (UTC +0000) : [Boot_Reboot] Reboot reason: UI-initiated reboot - Upgrade
2018-07-18 20:04:14 (UTC +0000) : [EthernetUpDown] Ethernet link down
2018-07-18 20:04:17 (UTC +0000) : [EthernetUpDown] Ethernet link up (1000/Full)
2018-07-18 20:04:20 (UTC +0000) : [EthernetUpDown] Ethernet link up (1000/Full)
2018-07-18 21:03:57 (UTC +0000) : [TempWarn] CPU temperature 130(C) is outside the safe range of 0 to 110.
2018-07-18 22:03:56 (UTC +0000) : [TempWarn] CPU temperature 130(C) is outside the safe range of 0 to 110.
2018-07-18 23:03:57 (UTC +0000) : [TempWarn] CPU temperature 120(C) is outside the safe range of 0 to 110.
2018-07-19 00:03:58 (UTC +0000) : [TempWarn] CPU temperature 121(C) is outside the safe range of 0 to 110.
2018-07-19 01:03:58 (UTC +0000) : [TempWarn] CPU temperature 119(C) is outside the safe range of 0 to 110.
2018-07-19 02:04:00 (UTC +0000) : [TempWarn] CPU temperature 119(C) is outside the safe range of 0 to 110.
2018-07-19 03:04:01 (UTC +0000) : [TempWarn] CPU temperature 118(C) is outside the safe range of 0 to 110.
2018-07-19 04:04:02 (UTC +0000) : [TempWarn] CPU temperature 118(C) is outside the safe range of 0 to 110.
2018-07-19 05:04:01 (UTC +0000) : [TempWarn] CPU temperature 117(C) is outside the safe range of 0 to 110.
2018-07-19 06:04:05 (UTC +0000) : [TempWarn] CPU temperature 118(C) is outside the safe range of 0 to 110.
2018-07-19 07:04:03 (UTC +0000) : [TempWarn] CPU temperature 118(C) is outside the safe range of 0 to 110.

#2

I have not seen it myself, I have seen some overheating issues with individual C5s, but they have not caused issues for customers yet so I have not looked into it. I have been assuming that it was antenna location (next to a dryer exhaust) or direct + reflected sunlight making my issues. I will keep an eye out and see if anything pops up.


#3

This C5 isn’t near any kind of vent, and it’s been running just fine for three months now. The day after we firmware updated to 2.4.1.1 it starts throwing temp errors.

I just rolled it back to 2.4.1 yesterday and no temp errors so far. Will continue to monitor, but it’s looking like a firmware issue to us.


#4

Hi guys,

@William5 if you have some overheating C5s (at least in the logs), please come to chat and give us some serial numbers. We’ll take a look and see what’s going on.

@Josh15 good to talk to you again. I’m going to make a case and engineering ticket for this. This is the first instance we have seen where a C5 is throwing temp warns after an upgrade to 2.4.1.1. I’m sure they’ll be very interested in this.


#5

@DustinS, will do! Just have to have a moment to catch my breath first. :weary:


#6

You C5 is overheating but My A5 running on firmware 2.4.1 is freezing. However, this A5 is install in Malaysia where Malaysia never get negative temperature. Suspected is not only is the firmware issue but the hardware is suspected.


#7

@mbixions, do try going to 2.4.1.1, it could just be an incorrect reading by the software.


#8

We are investigating the “freezing cold” A5. We have seen this in one other case.