PLease disregard. This tuned out to be a problem with a NordVPN setting: Make PC invisible on LAN which needs to be deactivated. I don't remeber setting it, but I could have, maybe an update... thanks for the help, and sorry for the curve ball.

I have tried a flurry of network reset commands on the windows machine, uninstalling the adapter, etc,.. to no avail. this windows machine is the only one on the network with the problem. I don't get it. The name "router" or hda resolves in the ping command, but the ping (or tracert) give ...

Hi, I recently changed my Amahi server to use the google DNS entries (don't know if this is relevant). I am stuck now trying to access my router (192.168.2.4), Http://hda or 192.168.2.99 (address of HDA), any of these sites give me "unable to connect" in Firefox, or "Hmm.. can't reach...