Big Sur and Parallels: "Network initialization failed"

L

LukeI

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Since I have upgraded to Mac OS 11 Big Sur when I start my Windows 10 virtual machine I get this error message "Network initialization failed. Your virtual machine will continue working normally but will no have no network connection".

I tried the solution posted on some forums to use Terminal with this command line: "sudo rm /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist && sudo killall -9 configd" but to no avail and the problem still persists.
Anyone with some ideas? Does Parallels 16.1 solves this issue?
Many thanks for your help and support.
 
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LouisN said:
VMWare 12 Fusion performance is awful on my Big Sur MacBook Air, I can't recommend it at all. Though of course you can test by yourself since it's free, you might get luckier than me and have a better performance
Click to expand...

You need to disable channel mitigations on VMWare for increase the performance.
To do this:
  • Turn off the VM
  • Go to your VM settings
  • Go on Advanced
  • Check the option "Disable Side Channel Mitigations"
Start again and check speed.

upload_2020-12-2_13-45-46.png
 
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NilcemarP said:
You need to disable channel mitigations on VMWare for increase the performance.
To do this:
  • Turn off the VM
  • Go to your VM settings
  • Go on Advanced
  • Check the option "Disable Side Channel Mitigations"
Start again and check speed.

View attachment 16982
Click to expand...
Thanks but I already tried this and countless fixes listed on VMWare forums, it just doesn't solve anything on my machine. Hopefully it does on others though. I spent the past week trying to get either Parallels or Fusion 12 to work, but every time there is something wrong while Parallels used to work perfectly on Mojave before I upgraded to Big Sur ):
 
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I am having this issues and the fixes don't work. Also, Parallels 16 messes up by ExpressVPN. The VPN gets no data unless I shutdown Parallels completely. Crazy stuff that this is not fixed yet. It has made Parallels unusable. Parallels 16 and support for Big Sur have been the worst experience I have had thus far using Parallels for years.
 
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Im having the same issue after upgrading to Big Sur my Windows has no Internet connection Im running Parallels 16.1.1
I tried sudo rm /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist && sudo killall -9 configd
But had no effect
PLEASE sort this out Parallels - this support page is no good https://kb.parallels.com/en/125039
 
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Hi All,
I think my issue is same as here.
Have several VLANS trunked to switch ports for connection to networking lab. Since upgrading to Big Sur am unable to bridge VLAN into VM. Have testing VLAN with DHCP, mac pref gets IP and GW, when bridged to VM get donuts, bridge direct to Ethernet (untagged traffic), good to go. Have active ticket, tried all workarounds, to no avail. Any assistance would be great, USB to Ethernet introduce many other issues.
Thank in advance.
 
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