macOS High Sierra 10.13.6

VMware Fusion 10.1.3

Error message: "Cannot find a valid peer process to connect to."

Already clicked Allow on Privacy and Security for VMware Inc. but the button doesn´t work.

How else might I troubleshoot this?

  • It could be that the VMware Fusion kernel extension is being blocked. Open System Preferences>Security and Privacy and check whether this message is shown: "System software from developer "VMWare, Inc." was blocked from loading". If that's the case, you need to click the button "Allow" next to it (credit: superuser.com/questions/1256489/…)
    – jaume
    Aug 20, 2018 at 19:54
  • Hi! The problem is that the Allow button does nothing. Doesn't work. Any other hints? Thanks!
    – fabstao
    Aug 21, 2018 at 5:24
  • Sorry, you're right, it's cleary described in your question but I kind of missed it. I'd expect the Allow button to work, so I guess that some component couldn't install properly. Instead of troubleshooting just take the easy road and reinstall VMware Fusion (important: uninstall with the uninstaller provided with the Fusion image).
    – jaume
    Aug 21, 2018 at 5:59

1 Answer 1


I found the allow button wouldn't work as I was running magicprefs mouse software. I disabled this and the button then worked. However that didn't fix the problem for very long and the VM continues to crash.

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