Hello, i actually got problem, i receive gift from my friend, he gave me his old router, beacuse my shut down. When i try to turn on him, he actually work. But when i plug in ethernet, cabel WAN it's doesn't see it. But when i plug in cabel WAN to First of 4 port LAN, Diode blink 1 time and turn off. Ethernet diode, wifi diode and power supply diode is working on. I tried to turn off DHCP, Clone MAC, change IP, actually everything. Maybe u can help me, it's my last save desk. Cheers!