I face a problem in connecting ARTIQ to my laptop and greatly appreciate any assistance from the community. I tried to use RJ45 to connect router and Kasli-SoC (1125), but the led on the ETH port didn't illuminate and I failed to ping ARTIQ (with default IP 192.168.1.75) from my laptop. I also used RJ45 wire to connect ETH port on Kasli-SoC to PC, still end to failure and the ETH led twinkled occassionally (red). What should I do to connect the ARTIQ to computer?