just a quick heads up: apparently this is a general problem with the pi3. i found a workaround here:
even though i’ didn’t understand half of what i read there i found that installing ethtool and executing this command solves the problem reliantly:
now i’m still trying to figure out how to make this fix persistent after reboot. I tried adding the above line to /etc/rc.local but that didn’t seem to work… i still have to execute the command each time upon reboot:man_shrugging: