Sorry to hear you've been getting poor speeds. I've just checked your connection and can see no issues from here. Your power levels, SNR and area contention all look healthy from here. Are you still getting the same poor speeds and high latency?
Yes. The speed issues are only for wireless. I have tried every device right next to the router and ping is now fine but speeds are sub 2Mbps. Nothing has been moved in my house and everything has been fine for the past three years here but for some reason it's just not working now. As stated this is with the devices right next to the unit. I have cycled through all 13 available channels as well.
I should note that upload speed is perfect, 5Mbps, in every test I run so it's clearly not a signal strength or interference issue.