I've been looking at power line adapters and thinking can power line be the same performance as wired Ethernet? Will it be worse that Wireless? I'm like at least 12 feet away from my router but its downstairs and I dont have Ethernet wired in my home. WiFi Speeds and up are 73 (down) 78 (up). Sometimes it varys which is why I ant a wired for a more stable connection. Ping even varys from 9-12 each speed test.