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The legacy network stack sets net_try_count to 1 at the beginning of the net_loop() function. This is required for net_start_again() to work properly. Therefore, set the variable accordingly in the do_ping() function when NET_LWIP=y. This fixes an issue where a ping to an unreachable destination would run twice on the same network device. For example with qemu_arm64_lwip_defconfig: => dhcp DHCP client bound to address 10.0.2.15 (3 ms) => ping 10.0.0.1 Using virtio-net#32 device ping failed; host 10.0.0.1 is not alive Using virtio-net#32 device ping failed; host 10.0.0.1 is not alive => QEMU: Terminated Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>