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Ticket Resolution Summary Owner Reporter
#14500 fixed Host network disconnect on VM startup/shutdown => Fixed in SVN Legorol
Description

Host: Windows 7 x64
Guest: variety of Windows versions, e.g. Windows 8.1 Enterprise
Network: Bridged mode to host's Realtek PCIe Gigabit Ethernet

Very often when I start up or shut down a VM that has bridged mode networking, the host(!) network briefly disconnects for 20-30 seconds. Seems to happen only when there is no other VM running and so the VM is the first one I'm starting, or the last one I'm shutting down. The issue may be related to the new NDIS6 driver entering/exiting bypass mode.

The issue also often occurs when closing the VM's window on the host, e.g. by pressing the close (X) icon in the top-right corner of the VM window. Host network disconnects before the "Close Virtual Machine" dialog shows up, and also after a button is pressed in the dialog. Presumably because while the dialog is showing, the VM is suspended.

The temporary disconnect interrupts all network activity, e.g. file downloads, Skype call etc.

As evidence of the host network disconnect, here is an example of a continuous ping on the host to the local router during a VM start up:

Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
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Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64

This issue was first reported during the version 5 beta and more information is available in this thread: https://forums.virtualbox.org/viewtopic.php?f=15&t=66927

#12451 fixed Dont start after installing guest os (VINF_EM_TRIPLE_FAULT, newer AMD) Leh
Description

После установки гостевой ОС при запуске сразу выдает ошибку

#19657 invalid Could not save txt file to shared folders LeiChen
Description

Host: Win7 Guest: Ubuntu 20.4 Steps:

  1. add a shared folder named "shared", readwrite mode.
  2. put a text file into the shared folder under Windows host;
  3. open the text file under Ubuntu by "gedit"
  4. make some changes to the file and choose to save
  5. "gedit" reports : "Count not save the file. Unexpected error: Error renaming temporary file: Text file busy"
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