# Zwift Crashing, Freezing, or Not Launching

> If Zwift crashes, freezes, or doesn’t launch, follow the troubleshooting steps for the issue you’re experiencing...

Source: https://support.zwift.com/en_us/zwift-crashing-freezing-or-not-launching-BJnK5T3GB

Last updated: 2026-10-15T16:56:26.988Z

# Zwift Crashing, Freezing, or Not Launching

If Zwift crashes, freezes, or doesn’t launch, follow the troubleshooting steps for the issue you’re experiencing.

## Possible Causes

Zwift may crash, freeze, or fail to launch because of:

*   A device that doesn’t meet Zwift’s minimum requirements.
    
*   Out-of-date Zwift, operating system, or software.
    
*   Missing or corrupted Zwift files.
    
*   A VPN, proxy, firewall, or network configuration preventing Zwift from connecting.
    
*   Out-of-date graphics drivers on a PC.
    
*   Custom graphics or performance settings affecting stability.
    
*   Other apps or connected hardware using device resources needed by Zwift.
    

## Resolution

Select the issue you’re experiencing:

*   **Zwift doesn’t launch:** Follow the steps in [Zwift Doesn’t Launch](#Zwift_Doesn%E2%80%99t_Launch).
    
*   **Zwift freezes or closes unexpectedly:** Follow the steps in [Zwift Freezes or Crashes](#Zwift_Freezes_or_Crashes).
    

## Zwift Doesn’t Launch

### PC and Mac

Try each step below. After each step, check if the issue is resolved before continuing.

1.  Verify your computer meets [Zwift's minimum requirements](https://support.zwift.com/supported-devices-to-run-zwift-H1Cj9QbeB).
    
2.  [Update Zwift](https://support.zwift.com/en_us/updating-zwift-S1nAmInTS) and install any available operating system updates.
    
3.  [Reset Zwift Launcher](https://support.zwift.com/en_us/resetting-the-zwift-launcher-H1cPB0v0L) or [reinstall Zwift](https://support.zwift.com/en_us/reinstalling-zwift-BymCF82TH).
    
4.  If you’re using a VPN or proxy server, disable it before launching Zwift.
    
5.  Check whether your firewall is blocking Zwift.
    
6.  Try another available network connection to determine whether your network is contributing to the issue.
    
7.  Confirm you have at least 5 GB of available storage and the Zwift destination folder isn’t a synced folder, such as Dropbox.
    
8.  If you see a ZL or ZLM error, follow the instructions provided with the error.
    

Your network firewall should allow all incoming/outgoing TCP traffic on remote ports 443 and 3025, and all incoming/outgoing UDP traffic on remote port 3024.

If Zwift still doesn’t launch, [save your launcher logs](https://support.zwift.com/en_us/locating-your-activity-log-and-workout-files-BykKO63fr) and [contact support](https://support.zwift.com/contact/contact-us-HJH8N4RNQ).

### Apple TV, iOS, and Android

Try each step below. After each step, check if the issue is resolved before continuing.

1.  Verify your device meets [Zwift's minimum requirements](https://support.zwift.com/supported-devices-to-run-zwift-H1Cj9QbeB).
    
2.  [Update Zwift](https://support.zwift.com/en_us/updating-zwift-S1nAmInTS) and install any available operating system updates.
    
3.  [Reinstall Zwift](https://support.zwift.com/en_us/reinstalling-zwift-BymCF82TH).
    
4.  On Android, clear Zwift’s cache and app data using your device manufacturer’s instructions.
    
5.  On Android, if the issue involves Google Play Services, refresh Google Play Services.
    

If Zwift still doesn’t launch, [contact support](https://support.zwift.com/contact/contact-us-HJH8N4RNQ).

## Zwift Freezes or Crashes

If Zwift stops responding or closes unexpectedly, follow the troubleshooting steps for your device.

### PC

Try each step below. After each step, check if the issue is resolved before continuing.

1.  Verify your computer meets [Zwift's minimum requirements](https://support.zwift.com/supported-devices-to-run-zwift-H1Cj9QbeB).
    
2.  [Update Zwift](https://support.zwift.com/en_us/updating-zwift-S1nAmInTS) and install any available Windows updates.
    
3.  Close unnecessary apps and background processes.
    
4.  Return custom PC and GPU performance settings to their default values.
    
5.  If you use multiple monitors, disconnect or disable additional monitors and try running Zwift with one display.
    
6.  Update your graphics driver using your GPU manufacturer’s support resources:
    
    *   [AMD](https://www.amd.com/en/support)
        
    *   [Intel](https://www.intel.com/content/www/us/en/support/intel-driver-support-assistant.html)
        
    *   [NVIDIA](https://www.nvidia.com/Download/index.aspx?lang=en-us&ncid=afm-chs-44270&ranMID=44270&ranEAID=msYS1Nvjv4c&ranSiteID=msYS1Nvjv4c-CQyOyeE5YVogP46U9F1fRg).
        
7.  If Zwift stops responding, [force close](https://support.zwift.com/en_us/force-closing-zwift-rkI3Rp7yP) it, then open it again.
    
8.  If the issue continues, [reinstall Zwift](https://support.zwift.com/en_us/reinstalling-zwift-BymCF82TH).
    

If Zwift still freezes or crashes, [save your launcher logs](https://support.zwift.com/en_us/locating-your-activity-log-and-workout-files-BykKO63fr) and [contact support](https://support.zwift.com/contact/contact-us-HJH8N4RNQ). If you can consistently reproduce the issue, include the steps that cause the crash.

### Mac

Try each step below. After each step, check if the issue is resolved before continuing.

1.  Verify your Mac meets [Zwift's minimum requirements](https://support.zwift.com/supported-devices-to-run-zwift-H1Cj9QbeB).
    
2.  [Update Zwift](https://support.zwift.com/en_us/updating-zwift-S1nAmInTS).
    
3.  Close unnecessary apps.
    
4.  Check for software updates:
    
    1.  Select the **Apple** icon in the Menu Bar.
        
    2.  Select **System Preferences** or **System Settings**.
        
    3.  Select **Software Update**.
        
    4.  If an update is available, select **Update Now**.
        
5.  If Zwift stops responding, [force close](https://support.zwift.com/en_us/force-closing-zwift-rkI3Rp7yP) it, then open it again.
    
6.  If the issue continues, [reinstall Zwift](https://support.zwift.com/en_us/reinstalling-zwift-BymCF82TH).
    

If Zwift still freezes or crashes, [save your launcher logs](https://support.zwift.com/en_us/locating-your-activity-log-and-workout-files-BykKO63fr) and [contact support](https://support.zwift.com/contact/contact-us-HJH8N4RNQ). If you can consistently reproduce the issue, include the steps that cause the crash.

### Apple TV, iOS, and Android

Try each step below. After each step, check if the issue is resolved before continuing.

1.  Verify your device meets [Zwift's minimum requirements](https://support.zwift.com/supported-devices-to-run-zwift-H1Cj9QbeB).
    
2.  [Update Zwift](https://support.zwift.com/en_us/updating-zwift-S1nAmInTS) and install any available operating system updates.
    
3.  Close unnecessary background apps or processes.
    
4.  Free up available device storage.
    
5.  [Force close](https://support.zwift.com/en_us/force-closing-zwift-rkI3Rp7yP) Zwift, then open it again.
    
6.  If the issue continues, reinstall Zwift.
    

If Zwift still freezes or crashes [contact support](https://support.zwift.com/contact/contact-us-HJH8N4RNQ). If you can consistently reproduce the issue, include the steps that cause the crash.

## Related Articles

*   [Supported Devices to Run Zwift](https://support.zwift.com/supported-devices-to-run-zwift-H1Cj9QbeB)
    
*   [Reinstalling Zwift](https://support.zwift.com/en_us/reinstalling-zwift-BymCF82TH)
    
*   [Updating Zwift](https://support.zwift.com/en_us/updating-zwift-S1nAmInTS)
    
*   [Resetting the Zwift Launcher](https://support.zwift.com/en_us/resetting-the-zwift-launcher-H1cPB0v0L)
    
*   [Locating Your Activity and Log Workout Files](https://support.zwift.com/en_us/locating-your-activity-log-and-workout-files-BykKO63fr)
    

Ride On.

\-The Team at Zwift