For what it's worth, if you have a standard Windows desktop PC that you can access, a cheap add-in network adaptor card will fix the Ethernet connection issues. (Not WiFi issues). A TG-3468 TP-Link PCI Network Adaptor card can be purchased for around $18.00 from many computer parts suppliers. As long as you have a spare PCI-E slot in the computer it can be plugged-in. Note: these network cards come in Versions or Revisions: 1, 2, 3, & 4. If you are running Windows10, you require the later Versions 3 or 4. Version 3 seems to work fine on Windows10. I find this network adaptor seems to have more current, updated standards than the older built-in (Motherboard) network adaptors and doesn't tend to go to sleep or drop the Ethernet connection. Windows10 should automatically find the new card and install it. It may require a couple of re-boots. Also note that if the computer is dropping the Ethernet connection on your old Network adaptor, it will not automatically switch-over to WiFi if the Ethernet plug is still plugged-in. It needs to be removed to switch-over to WiFi as the Ethernet is still trying to connect.
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