MacDebug

Verified for macOS Tahoe 26.2

title: How to Fix macOS Tahoe 26.2 Hard Freeze and Sleep Wake Failure

description: Fix the "Sleep Wake Failure" and random hard freezes reported by M1/M4 MacBook users on macOS Tahoe 26.2.

category: System

How to Fix macOS Tahoe 26.2 Hard Freeze and Sleep Wake Failure

Users on macOS Tahoe 26.2—particularly those on M1 Pro and M4 Pro chips—have reported frequent "hard freezes." These occur either while the Mac is in use (requiring a forced restart) or while asleep (refusing to wake up).

Follow these steps to stabilize your system.

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Method 1: Reset the NVRAM/SMC (Intel) or Shutdown (Apple Silicon)

While Apple Silicon Macs don't have a traditional NVRAM reset, a "cold boot" can clear the hardware state.

  1. Shut down your Mac completely.
  2. Wait 30 seconds.
  3. Turn it back on.

Method 2: Disable "Wake for Network Access"

Tahoe 26.2 has a known bug where network requests while asleep can cause a kernel panic on M-series chips.

  1. Go to System Settings > Battery > Options.
  2. Set "Wake for network access" to Never.

Method 3: Remove Third-Party Kernel Extensions

Older apps using kernel extensions (KEXTs) are a primary cause of freezes in Tahoe.

  1. Open Terminal.
  2. Run this command to see third-party extensions:
kextstat | grep -v com.apple
  1. Update or uninstall any apps listed (common culprits include older VPNs or disk utilities).

Method 4: Run First Aid on Container

A freeze can sometimes result from an APFS file system error during the Tahoe update.

  1. Restart your Mac into Recovery Mode (Hold Power button on startup).
  2. Select Disk Utility.
  3. Select Macintosh HD (or your boot drive) and click First Aid.
  4. Run it on the Container, not just the volume.