Finally figured it out

[John Lifer]

Been running my laser thru USB. As my computer is in basement and I'm too cheap and lazy to run cable from my router up into attic and across and down into my basement, I've been using a wifi extender in the basement. And wifi dongle for the wifi connection at the computer. But USB connection is slow. Way slow as compared to Ethernet. But windows 10........ If I connect the lase to the Ethernet, either with or without a switch, win10 randomly cuts off internet. Thinks Ethernet should have internet, when it plainly doesn't.

I finally searched around and found I could change setting to make computer always look for internet thru wifi and never at Ethernet. But it sure wasn't easy! Should be easy, but not! But internet works and so does laser! Now i cna connect fiber through USB or Ethernet ( if that is option).

[John Noell]

I was never bothered by the slower USB speed, UNTIL I tried Ethernet. Oooh, instant! I would not want to go back.

[John Lifer]

Yes, I've sent a few files that took 20 odd seconds USB. I took one and copied it seven times and then sent Ethernet. Took less than 2......

[Tim Bateson]

I too use wireless connected to a USB in my basement shop. As in your case, there just isn't a good way to get a connection from the router to my shop. After the Win10 upgrade I would fight dropped connections daily. I can't remember for sure, but I changed something to do with the USB devices & now I no longer have dropped connections. Just as you said too, it wasn't easy to find a workable solution.

[John Lifer]

I know that no one will find it here, but you go to control panel, network and internet, network connections. Then you change settings in both Ethernet and the WiFi. So for Wifi you then right click properties, box opens and then go down and click on (select)Internet Protocol version 4 TCP/IPv4) and then click Properties. Another box opens and in lower right click on Advanced.
Unclick the Automatic metric and enter a number. If you want your system to look for WiFi first (and really only) put in low number for Interface metric(I put in 5).
Then ok and close the last tab and pick Internet protocol version 6 and do the same. Then close Wifi propterties and select Ethernet.

Right click and select properties, select IPV4 and click Properties and then click advanced and on next box unclick automatic metric an dput in higher number (I used 35) for Interface metric and ok.
Repeat for IPV6.

IF you want Ethernet always reverse numbers!
Maybe this will help someone else!

[Bill George]

There are also settings for USB ports that can put them to sleep for a power saving mode. This was either discussed here or over on one of the 3D printer forums. You need to go to the Properties area of that port to check and see.