Thanks for the link, may be mine is a problem similar to the one described in here Xiaomi R4A Gigabit 21.02 problem with 100mbps ethernet WAN - #6 by bill888, because upgrading to a current snapshot fixes the issue.
Thanks for the link, may be mine is a problem similar to the one described in here Xiaomi R4A Gigabit 21.02 problem with 100mbps ethernet WAN - #6 by bill888, because upgrading to a current snapshot fixes the issue.