Windows 10: Windows 10 no longer seeing Ethernet connection, Killer hardware no longer detected,...

Running Windows 10 on Dell XPS8930All my 3 pcs 2 Dells, 1 Scan suddenly dropped ability to see or recognise ethernet cablesOne pc has come back online and now able to access internet via ethernet and wifiThe other two pcs still only able to access via wifiWe have:replaced the ethernet cablesreplaced the router switchTaken the pcs off fast start upTried to update adapter drivers, but cannot see them on pc, even when selecting "view hidden devices"Deleted the Killer Ethernet Performance Suite through Windows uninstallTried to reinstall the driversCannot now install new driversCannot see the Et

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Windows 10 No Longer Connects to Ethernet and WiFi

This week brought Win10 ver 1903 and I can no longer get WiFi to connect if the ethernet cable is plugged in. If I boot with ethernet, manually trying to connect WiFi silently fails. If I boot without ethernet, WiFi is automatically connected yet drops
if I plug in the ethernet cable. Both the WiFi and the ethernet work fine by themselves, just not at the same time so I don't think it is a driver problem.

Any suggestions would be appreciated

 

Ethernet Hardware gone?

Turned on my pc, the internet wasn't connected, messed with the Ethernet cable, tested with other devices, found out that the issue is with the Ethernet on my computer.

What I've done:

• Tried "Network reset" from settings
  
• Tried updating drivers (all drivers up to date)
  
• Noticed Killer E2200 driver in device manager was hidden, when I clicked on it it said "(Code 45) Device not connected"
  
• Tried installing Killer Ethernet Network manager and Killer Suite, neither would install as they could not "detect Killer hardware"
  
• Tried uninstalling the Killer driver all together...
  

Still no luck... I don't know how to manually install the drivers, I looked into it and there is something that shows you can in the device manager right click on "Ethernet Controller" under "Other Devices" and manually install the drivers that way. However, I do not even have "Other devices" listed. And again, I was able to see the drivers at one point and they said the killer device was not connected.

Operating System: Windows 10 64<br/>
Motherboard: MSI Z87-GD65 Gaming

 

Windows 10 no longer DETECTs the second display.

Windows 10 no longer DETECTs the second monitor on my surface pro.

It used to detect the Dell S2440L, but I moved locations and set the second monitor up again after it being disconnected for -1- month.

It no longer detects the second monitor. Also, the driver is not listed in Device Manager/Drivers list.