Forum Discussion
Why does a VPN connection change how Windows discovers devices on the local network?
When I connect to a VPN on my Windows PC, I can no longer see other computers or network devices like printers and media servers that are normally visible on my local home network. I suspect the VPN is rerouting my network traffic and changing how Windows handles network discovery and name resolution, but I need to understand exactly why this happens and whether there is a setting to allow local device discovery while still using the VPN connection.
2 Replies
The main culprit is Network Discovery. Windows relies on broadcasting special packets over your local network to find other devices, a process also known as NetBIOS name resolution.
By default, the VPN sets itself as the "default gateway" for all your internet traffic. This means when you try to reach a device on your home network (like a printer), your computer looks at its routing table and sends that request through the VPN tunnel, instead of directly to your local router. The request never reaches your local devices.
