atsies

eth0: flags=4163 mtu 1500 inet 169.254.166.156 netmask 255.255.0.0 broadcast 169.254.255.255 inet6 fe80::68d7:f1ed:107b:9c79 prefixlen 64 scopeid 0x20 ether dc:a6:32:a0:ab:a2 txqueuelen 1000 (Ethernet) RX packets 3608 bytes 406771 (397.2 KiB) RX errors...

Transmission queue(s) remain locked, the number of TX-ERR increments: Iface MTU RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 8118 0 0 0 3 321 0 0...

ethtool -S eth0 NIC statistics: rx_packets: 13652 tx_packets: 3 rx_bytes: 1514002 tx_bytes: 580 rx_errors: 0 tx_errors: 551 rx_dropped: 0 tx_dropped: 0 multicast: 7922 rx_64_octets: 67934 rx_65_127_oct: 10143 rx_128_255_oct: 1965 rx_256_511_oct:...

Ordered a 3'rd RPi4 B rev. 1.2 . The same issue. It looks like the network traffic is the cause of the problem. After switching to another network the RPi...