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Re: Ethernet port going to sleep
Posted: Wed Feb 04, 2015 10:29 am
by mx270a
Funny, I have a NANO that started doing this a week ago. It's running the Wifi example, not sure what version it was complied with. Both Wifi and Wired are offline, but the link light is still up and the activity occasionally blinks. Press the reset button and it comes back online for a while. I haven't bothered to do any troubleshooting as it isn't the top of my list right now. Probably entirely unrelated, but the timing is curious though.
Re: Ethernet port going to sleep
Posted: Wed Feb 04, 2015 12:49 pm
by dciliske
If both interfaces (wired and wireless) seem down, then it's not an ethernet driver issue. It could still be a deadlocking problem in the IP layer, but it could also be a buffer depletion problem as well. Knowing the result of GetFreeCount() would go a long way towards answering this.
-Dan
Re: Ethernet port going to sleep
Posted: Wed Feb 04, 2015 1:18 pm
by rnixon
I though I remembered something about this, so I checked the release notes for 2.5.3. I think you need to get updated tools
* TCP
o TCP errors in Release 2.5.2 are significant and can the TCP stack and/or user tasks to permanently hang up..
Symptoms include:
o Locking TCP connections
o Freezing web pages after consecutive reloads
o Freezing web pages after days of idle time.
o Fixed TCP timeout processing of closed sockets
o Fixed TCP hangup and half closed sockets memory leak
o Performace imporvement
o Fixed incorrect arp caching scenario
o Fixed Accept close race in TCP
o Fixed bug that can cause TCP task to remain in infinite loop.