Hello, we have problem on Windows 10. When we connect ethernet cable, the WiFi automatically disable WiFi adapter. We checked BIOS, properities of adapters, check presence of third party programs and nothing is set wrong to do that. It started doing after
Windows 10 update on December 2018. Is it something in registry?
Hi,
I am Ganesh Gandhi, an Independent Advisor and Office Insider for Android. I am here to work with you on this problem.
Kindly follow these steps below and both devices will be functioning concurrently.
1. Go to network and sharing center in control panel.
2. Select change adapter settings
3. Right click on your Ethernet device and select properties on popup menu.
4. In properties menu, click configure button.
5. When configure menu, select advanced tab.
6. In advanced menu, under property list, look for "Priority & Vlan" and select it.
7. Look in value list to the right and select disable toggle.
8. Click Ok, on your way back out of menus and wait 15 seconds until system updates new value.
You have just disabled your Ethernet LAN priority so it will function together with your WIFI.
Also,
Disable 'IPsec Policy Agent' service and
setting the registry key
HKLM\Software\Policies\Microsoft\Windows\WcmSvc\GroupPolicy!fMinimizeConnections to 0.
Prohibit connection to non-domain networks when connected to domain-authenticated network"
This happens because of higher priority of Ethernet as compared to WiFi. The priority order is Ethernet > WiFi > Cellular. More information provided in this documentation: