Players of Path of Exile 2 may occasionally encounter the frustrating Buffer Underflow Error, which can cause crashes or performance issues. This error typically stems from inconsistencies in game files, corrupted data, or system resource limitations. Fortunately, there are several steps users can take to resolve this issue and get back to enjoying the game.
What Causes the POE 2 Buffer Underflow Error?
Several factors may lead to this error, including:
- Corrupted or missing game files
- Outdated graphics card drivers
- Conflict with third-party software
- System memory instability
- Problems with the game’s cache
How to Fix the POE 2 Buffer Underflow Error
1. Verify the Integrity of Game Files
Corruption in the game’s files can cause unexpected errors. Steam and Epic Games Launcher provide tools to check for and fix missing or corrupted game files.
- For Steam users:
- Open Steam and go to the game library.
- Right-click on Path of Exile 2 and select Properties.
- Go to the Installed Files tab and click Verify integrity of game files.
- Wait for the scan to complete, then restart the game.
- For Epic Games users:
- Open the Epic Games Launcher and go to the Library.
- Find Path of Exile 2 and click the three dots next to it.
- Select Verify and allow the process to complete.
2. Update Graphics Drivers
Outdated or faulty graphics drivers can contribute to this error. Updating them ensures compatibility and smooth performance.
- For Nvidia Users:
- Download and install the latest drivers from Nvidia’s official website.
- Use GeForce Experience to keep drivers up to date.
- For AMD Users:
- Visit the AMD drivers page and download the latest version.
- Use the Radeon software to check for updates.
3. Disable Background Applications
Third-party applications, including overlays and system utilities, can interfere with game performance. Try disabling the following:
- Discord overlay
- Steam overlay
- GeForce Experience overlay
- MSI Afterburner or similar applications
4. Adjust Virtual Memory
A system with insufficient virtual memory may encounter a buffer underflow error. Increasing the page file size can reduce the likelihood of this issue.
- Press Win + R, type sysdm.cpl, and press Enter.
- Go to the Advanced tab and click Settings under Performance.
- In the Performance Options window, click on the Advanced tab and select Change under Virtual Memory.
- Uncheck Automatically manage paging file size for all drives.
- Select the system drive (usually C:), choose Custom size, and set the initial size to 1.5 times the RAM size, and the maximum to 3 times the RAM size.
- Click OK and restart the computer.
5. Reinstall Path of Exile 2
If all else fails, reinstalling the game can resolve deeper issues that verification cannot fix.
- Uninstall the game via Steam or Epic Games Launcher.
- Delete leftover files from the installation folder.
- Reinstall the game and try launching it again.
Frequently Asked Questions (FAQ)
What does the Buffer Underflow Error mean in POE 2?
This error occurs when the game fails to retrieve data correctly from system memory, leading to crashes or performance problems.
Can a slow internet connection cause this error?
No, this error is typically related to system settings or game files rather than internet speed.
Is there a way to prevent this error from happening again?
Regularly updating drivers, keeping system performance optimized, and verifying game files periodically can help prevent the issue.
Will reinstalling the game delete my progress?
No, game progress is saved on the server-side, meaning reinstalling the game will not delete character data.
Does this error affect all platforms?
It is most commonly reported on PC, but similar issues may occur on other platforms depending on hardware and software configurations.