I recently upgraded directly from Windows 8.1 64-bit to Windows 10 and I am having some problem with my Ethernet Adapter. My Ethernet Adapter is a Killer e2200 Gigabit Ethernet Controller, which is built in to my motherboard (MSI Z87M GAMING). When I first installed Windows 10, I found both a software suite and just the drivers themselves on the Killer website. I first tried the whole suite, but it didn't really work very well, felt unnecessary, and basically didn't seem to actually install any drivers. I then used the actual .inf file for my Ethernet Adapter to install manually. I uninstalled the driver and software, and then installed the driver manually through Device Manager by saying 'have disk' and navigating to the folder and selecting the .inf file I downloaded. This works, but I have to repeat the process of uninstalling and reinstalling the driver every time I restart Windows.
There are additional variables that could also contribute to the problem. I am using one of those adapters that plug into the electrical outlet to extend the Ethernet line to reach my basement. I don't know if this really should have any effect on my problems, but I figured I should mention it. The product is made by TP-LINK. I also have VPN software on my computer, and part of running the VPN software is having it install a 'TAP-Win32 Adapter V9' driver under Network adapters in Device Manager. This could be contributing to my problems, but I do need to have access to my VPN.
As a side note, I did not experience this problem at all under Windows 8.1 using the driver install disc that came with my motherboard.

I have been having problems with my computer randomly dropping my internet connection. Usually my ping spikes real high, Skype disconnects me, the game I'm playing disconnects me. I had this problem before upgrading to windows 10 and don't know if its my killer e2200 that came integrated with my motherboard. The driver is updated and I thought I might as well start here before trying to replace modem or router. I also want to add that I have a brand new Cat 6 cable Ethernet cable.
The only problem is trying to find a PCI Ethernet network adapter that is compatible with windows 10. I would really like to avoid using a USB 3.0 and prefer to use a PCI slot. Of course it doesn't need to say 'good for gaming' as I think any generic 10/100/1000 Ethernet adapter will do. The problem is finding one that works with Windows 10. Thanks.
And if anyone want to try and solve my network problem your welcome to. I notice it only when I'm playing a game and talking to friends on Skype. I might also be listening to music with a mixture of downloaded and streaming from Spotify. When I'm playing a game and talking I will notice that the persons voice is getting broken up and my game starts to lag, ping spikes way passed 1000. When this happens Skype says I'm offline and I'm trying to reconnect. The problem I'm facing leads me to believe it could be my router thinking that I'm taking to much bandwidth or something. I have a Linksys EA4500, and I have my computer under Media Prioritization. My modem is a Motorola SB6141.