I have a Netgear 1900 c7000v2 modem/router (installed in April 2019) eternetted to my PC (March 2019). I normally get about 280mbps download and 10mbps upload. Recently, I am getting 0.6 mbps on the upload. I have reset the modem, changed the port and cable, checked for updates, etc. I switched to wifi and got 230 on the download and 10.8 on the upload, ie pretty normal for wifi with the other PCs/Laptops in the house that operate on wifi. So, what is wrong? Any idea if I have a mechanical problem with the modem/router, or the PC?