The virtualbox suddenly keeps losing connectivity. Error message: Client Mac Addr.... PXE-E51, No DHCP or Proxy DHCP. PXE-MOF: Existing Intel PXE ROM. Fatal: Could not read from boot medium.

I use Bridged Adapter.

Has anyone seen this problem before? How to fix this?

  • Do you have a PXE server? It appears that you don't have an OS installed and there's no CD/DVD/ISO to boot from and also no network server to boot off of PXE from. – essjae Oct 16 '18 at 22:36
  • No, I don't have a PXE server. Everytime when it loses the connection it loses the "optical drive" & the iso that I pointed it to in the "Storage" section of Settings. I don't understand how this happens. – RT2709 Oct 17 '18 at 1:28
  • Your ISO is on a network share? – essjae Oct 17 '18 at 18:23

It has miraculously fixed itself. Well, I did a complete reinstall, it's working fine now.

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