Re: Anyone else seen this.

On 03/07/2026 16:21, The Natural Philosopher wrote:

> Recently my router (Draytek 2726) has been spontaneously rebooting.
> 
> Examination of the logs show a kernel panic caused by 'attempt to 
> execute an illegal instruction'.
> 
> My assumption, possibly erroneous, is that the actual firmware code is 
> corrupted
> The router is rated only to +45°C but that is the recommended limit for 
> flash memory, and the room temperature has been up towards 40°C. which 
> doesn't leave a great deal of margin for router internal heat production.
> My query is whether anyone else has seen issues with flash memory in the 
> recent hear wave.
> 
> Surely phones get hotter than this?
> 
> Genuinely interested in other's experiences.

Not noticed any particular pattern of reboots with the current one 
(2927), the previous 2865 might have restarted more frequently - but 
even then only 2 or 3 times a year.

(I think if they detect a sequence of boot time fails, they will revert 
to the previous version of the firmware just in case it was a firmware 
update that caused the problem)

The FTTP sometimes drops out for 10 mins at midnight once every few 
weeks, but I expect that is a ISP issue or something on the PON.

I have a temperature sensor plugged into one of the USB ports on the 
router, and the graph is showing a daily cycle between 40.2 and 40.6 deg 
C at the moment. (it is in a 12U 19" comms cab - but the door is open)

-- 
Cheers,

John.

/=================================================================\
|          Internode Ltd -  http://www.internode.co.uk            |
|-----------------------------------------------------------------|
|        John Rumm - john(at)internode(dot)co(dot)uk              |
\=================================================================/