Virtual machines using UTM software cannot boot on Apple M5 Pro machines when the network mode is set to bridged [1].
This failure disrupts the ability of developers and power users to run isolated operating systems with direct network access. Bridged networking is essential for services that require the virtual machine to appear as a unique device on a local network, making this a critical stability issue for professional workflows.
The problem was documented in GitHub issue #7658 [1]. According to a user report, "VMs can't boot with Network Mode set to Bridged" [1]. This specific configuration prevents the guest operating system from initializing, effectively locking users out of their virtual environments when this network setting is active.
Technical discussions suggest the problem is a new development. One contributor said, "This is a regression since the last stable release" [1]. The exact cause of the failure remains unknown, though it appears specifically tied to the hardware architecture of the M5 Pro chip.
The issue has gained traction within the technical community, drawing eight comments on a related Hacker News thread [2]. Users are currently seeking a workaround or a patch from the UTM development team to restore functionality to the bridged network mode.
Because the failure is tied to a specific hardware-software interaction, affected users may need to switch to shared networking or other modes until a fix is deployed. The UTM team has not yet released a timeline for a resolution, but the tracking of the bug on GitHub remains the primary point of communication for the community [1].
“"VMs can't boot with Network Mode set to Bridged."”
This bug highlights the volatility of virtualization software when paired with new hardware iterations. Because the M5 Pro chip introduces architectural changes, regressions in network bridging can break critical dependencies for users who rely on virtual machines for server testing or legacy software support.
