macOS 26 Beta 1 VM Network Initialization Issue

After installing macOS Tahoe (macOS 26) Dev Beta 1, the VM can no longer connect to the internet and an error message attached pops up when attempting to run the VM. I understand that it was just released as of this afternoon, but I would like to see if maybe this can be addressed. I tried reinstalling Parallels Tools and restarted the machine, and it still won't connect.

 

I have the same issue on my MacBook M4 Pro, and it's still unresolved, but I had no issue on my MacBook M1 Pro Max. Hopefully a fix will be released soon

 

Thank you for the tip, amazing parallels bug.

 

What Parallels version are you using? P19 or P20?

 

Obviously the last version 20.x

 

I'm having this problem on RTM Tahoe and Parallels Version 26.0.1 (57243).

Technical data report number 501091100

 

Also, the issue appears to be specific to Windows; an Ubuntu VM has no problem using the network.

The workaround suggested above was ineffective.

 

I'm also having this issue on Tahoe 26.3.1, MacBook Air M5, Parallels Version 26.2.2.
I can use shared network but cannot use bridged network. The message appears when I choose bridged one.
Report number: 515024451

 

Seeing the same here, just got done setting up on a new M5 Air, and Shared Network works without issue, but bridged will not work with the same "Network Initialization Failed" message.

 

MacOS 26 Beta 1 has known issues with Third-Party VPNs and Little Snitch. If you have any kernel-level networking extensions installed on the host, they are likely the culprit. Uninstalling them (disabling is often not enough) is frequently required for VMs to get a stable handshake.

 

I never install the third-party network extensions manually. but the internal wifi won't work when I choose bridged on the parallels. The external USB Ethernet adapter works. I guess new MacBook M5 Air 15-inch has a compatible issue.