[En-Nut-Discussion] ethernet connection down

Harald Kipp harald.kipp at egnite.de
Fri Feb 4 09:35:26 CET 2005

Hi Peter,

please let us know the Nut/OS version you're running.


At 14:53 03.02.2005 -0800, you wrote:
>I am running an ethernut 2.1B connected to the internet with a static 
>IP.  I have also tried an ethernut 2.0A and this seems to exhibit the same 
>behavior. We access the webserver periodically every minute to get data 
>posted on the webpage.  The httpd and telnet threads we are running are 
>pretty much copied from example code.  After several hours of normal 
>operations (4 to 6 usually), the ethernut is no longer accessible over the 
>network.  All the LEDs are showing activity, but any incoming connection 
>will time out, no ping etc.  I set up a serial port thread to check the 
>threads with nutThreadList; all are listed as OK and appear normal.  The 
>NutHeapAvailable is around 18k.  I can then reboot over the serial port 
>(or by power cycling) and the ethernut will be available again over telnet 
>and http.  This problem is periodic, but it takes several hours to crash, 
>and not everything crashes, so the watchdog timer is of no use.
>Has anyone seen this problem?  Does anyone have any suggestions on methods 
>to figure out what is going on here?

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