I've been having a rather pecuilar problem for a couple of days now involving the networking on my windows 10 desktop. For somewhere around 3 years my computer's been exclusivly using it's ethernet port to connect to the LAN and internet, only recently (a month or so ago) did I add a wireless card.
For approximatly a week now my computer has been unable to access the internet over Ethernet (the problem began shortly after I swapped my DNS settings on the adapter to a new server in the US) and having it enabled at all will bring my wifi connection offline as well. I've reset the DNS settings from Network Connections -> Ethernet -> Properties ->IPV4 -> Properties to no avail, including the google DNS servers 18.104.22.168/22.214.171.124 and my router's dns settings.
It's important to note that the computer can still ping and connect to other machines on the LAN when using Ethernet.
A more hardware-savvy friend suggested I buy an Ethernet to USB adapter but I'd really like to make sure all other options are exhausted before I do that.
Has anyone experienced this problem before? I appreciate any pointers or tips that you offer.