Found a workaround!!!!
This actually works. I am typing this as I am connected to my office via VPN. Found it on a TechNet Forum posting from just yesterday.
Here's the problem and the solution from that post:
And another issue I'm facing is that open Network & Sharing Center --> Change Adapter Settings --> MyVPNConnection --> Properties --> Networking --> IPv4 or IPv6 clicking the properties button, just does nothing, nor error no info
(and the button is not grayed out). As workaround to enable/disable "Use default gateway" I use the following PowerShell command:
Get-VpnConnection
Set-VpnConnection -Name "myVPN" -SplitTunneling $True
Edit: This also happens on a second computer with Windows 10 RTM Enterprise Edition"
If you've never used Power Shell, it's pretty easy. In Win10, go to "Start" then find the folder for "Windows Power Shell" click the > to open the folder in the menu, and select the program "Windows Power Shell" by right-clicking on it and selecting "run
as administrator."
The Power Shell window will then pop up. If you don't see it, it may be hidden by whatever else you have on your screen. But it will be there.
At the command line, just enter the first command,
"Get-VpnConnection"
This will return a detailed listing of the settings for your Microsoft built-in VPN client adapter that you've already set up to connect remotely to a server, i.e., it will show all the settings for each VPN.
Next, perform the second command
Set-VpnConnection -Name "myVPN" -SplitTunneling $True
Be sure to insert the actual name of your own VPN (whatever you named it and what is shown next to "Name" after you perform the first command and get the settings returned) in the space for "myVPN", but be sure to place the command "-Name" before it.
Once you've typed in both commands, hit Enter.
The commands are case-sensitive, so be mindful of that.
I ran this, tried connecting to my office VPN, and I now have internet connection using my own computer's (and not the server's) default gateway. So it works!!!
I do not know if the settings will hold through a reboot. I will try that next. But hopefully this is more than a temporary fix, and once you run it the settings will stick so you don't have to do it all over again each time you reboot the machine (which
would be a major PITA given that Windows 10 is constantly rebooting to deal with all of the constant updating).
I will report back again after a reboot.