I have had this since last year, I've upgraded VirtualBox several times, now am on 5.1.30 r118389 (Qt5.6.2), and it still happens around once or twice a month (I use the VM daily).Īfter various voodoo attempts, I simplified the ritual down to these two steps: This happened to me several times (and still happens) with a Linux guest on a Windows 7 Professional host machine, with your same symptoms, including the inability to fix the situation even rebooting both machines. The network works fine with VMware Workstation Pro 14.0.0. Reinstalling VirtualBox and resetting all VirtualBox preferences didn't help.

I also tried to enable the DHCP on the virtual box host-only network on the host, but it didn't help: : 8C-89-A6-02-91-47Įthernet adapter VirtualBox Host-Only Network:ĭescription. : Tuesday, Octo2:19:54 AMĭefault Gateway. Wireless LAN adapter Wireless Network Connection:ĭescription. : Microsoft Virtual WiFi Miniport Adapter Wireless LAN adapter Wireless Network Connection 2:ĭescription. : Microsoft Virtual WiFi Miniport Adapter # Wireless LAN adapter Wireless Network Connection 3:ĭescription. : EnabledĮthernet adapter Local Area Connection 2: : Cisco An圜onnect Secure Mobility Client V

: Įthernet adapter Local Area Connection 4:Ĭonnection-specific DNS Suffix. Output of ipconfig /all: Microsoft Windows Ĭopyright (c) 2009 Microsoft Corporation. On the Windows 7 SP1 圆4 Ultimate host, I see that the VirtualBox Host-Only Network has 'no Internet access': that's likely to be the root of the issue: I've already rebooted the host VM since the VBox upgrade. Virtual machines created after the upgrade are also affected. What I see on the Windows 7 SP1 圆4 Ultimate guest: The 'virtual box host-only network' is enabled on the host:

I checked that the network is activated on each virtual machine: Upgrading to VirtualBox 6.0.6 didn't solve the issue. After the upgrade, the network stopped working for all my virtual machines (Windows 7 and Kubuntu 16.04).

Windows 7 on virtualbox