Windows File Sharing – Problems With Multiple IP Addresses

This was a bizarre problem that cost me half a day. I was unable to share folders from my Windows 10 PC, and I was near despair when I found the solution. I tried searching Google for many different phrases before I found the answer. This was the basic symptom: My shared folders were not accessible to other machines on the network. However, when I tried to connect to them from the same machine, it worked fine. Well, except it didn't. Let me explain. My machine is named "David-W10". It has Hyper-V running, so I have a couple of extra virtual network cards with private IP addresses in the 172.20.x.x address space. I have both IPv4 and IPv6 active. If I tried to browse to \\David-W10 from other machines on the net, no luck. If I tried to browse to \\David-W10 from the David-W10 machine itself, it worked fine. It turns…

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Switch between Hyper-V and VirtualBox on Windows 10

I have many virtual machines in Oracle VirtualBox, and I also use Docker under Hyper-V. Fortunately, I don't ever need to do both at the same time because Hyper-V (being a level 1 hypervisor) and VirtualBox (a level 2 hypervisor) cannot run at the same time. I guess I could convert all my VirtualBox images to Hyper-V format, but I switch between Mac, Linux and Windows quite a bit and VirtualBox is more portable. It's pretty simple, you'll need to use bcdedit.exe to create a new boot menu option that reboots the Windows 10 host with Hyper-V disabled. Note that the GUID shown in these examples are from my machine, and yours will be different. Step 1: Open a command prompt as administrator. Step 2: Run the following command: C:\>bcdedit /copy {current} /d "Disable Hyper-V" You will see the following result: The entry was successfully copied to {c8f8754a-d33e-11e8-8234-8cec4b60f7ca}. You can use…

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