Crash when connecting to my home Wifi router

[macfreek]

Thanks. From that thread it seems that the culprit was IPv6 router solliciation (as needed for SLAAC, which is often used in conjunction with DHCPv4). It seems I was looking at the correct event, but the wrong packet. My apologies for that. I have not yet reproduced it, but this seems very likely. I will follow the other thread for the upstream bug. Could you report back here once upstream is fixed and a new firmware for the pycom boards is available?

[abilio]

@macfreek, We'll report any progress here. Expect it to be included in the release after a solution is found :)

[williamv]

good find @abilio !! i changed ipv6 settings on my wireless router Netgear R7000 from 6to4-tunnel to Disabled and have not seen the crash again for the last 30 min ;-)

[JF002]

@abilio I disabled the IPV6 interface on my router, and indeed, my Lopy does not crash any more.

I'll leave the IPV6 interface disabled for now, but this is a workaround until it is fixed in the firmware :)

[PCA]

@abilio @JF002 same result for me. No more crashes if the wifi router IPV6 interface is disabled...

[abilio]

@williamv, @PCA, @JF002, thank you all for your reports :)

[macfreek]

Now that the bug has been found and fixed upstream, and merged into master, would you dare to take a stab at guessing a reasonable ETA before the upstream is released, and Pycom release a new firmware version? Is that a matter of days, around Christmas, next year, ...?

[rdixey]

I just loaded New firmware release 1.0.0.b1 on my LoPy and tested my WiFi connection and it worked without crashing. I see that this release included an Update to the latest IDF from Espressif, so I assume this addressed the problem. I glad this is fixed since I had no way to turn off IPv6 on my cable modem.

Thanks Pycom

[JF002]

Same for me, I updated to version 1.0.0.b1, re-enabled IPV6 on my router, and wifi does not seem to crash anymore.
I'll do more extensive test this afternoon :)

[williamv]

Same for me, upgraded firmware to 1.0.0.b1 on my LoPy, re-enabled IPv6 on router, happy puppy sinds then. Thank you for quickly fixing Pycom team!