Using the latest firmware from AsusWRT and after 3 days uptime I was getting a few Upnp errors so I opened the WAN tab and turned off Upnp which AiProtection also says is a risk. After the router came back I did a wired speed test and my 60mbps line (usually stable) was coming back as 11mbps. So I turned Upnp back on and speed went back to 59mbps on my wired PC. I tried this a couple more times and until the last time of turning Upnp off speed went back to normal 59. Anyone else seen this...
[RT-AC68U] Wired speed slow down
[RT-AC68U] Wired speed slow down