The Diablo error code 1016 is one of the most common errors with Diablo 3. With this error, there is not much to go with. The error occurs due to disconnect with the Diablo 3 server which Blizzard blames on the user’s internet connection.
The possible causes of the 1016 error are your antivirus blocking some elements of the game, IPv6, an IP address problem, and in rare cases a corrupt game file. Not to worry though, we have listed the fixes that have helped a large number of users.
Fix 1: Set Expectation on Antivirus and Windows
Defender
If you belong to the select group that still relies on Windows Defender or the Virus and Threat Protection in Windows 10 to ward off malicious people you need to set an exception on the app. If you use a third-party antivirus, you will have to do the same for the software. This is the first fix you should try as more often than not, the antivirus has barred some functions of the game which is leading to the Diablo 3 error code 1016. Here are the steps you need to follow depending on the software you use.
Set Exclusion on Virus and Threat Protection
The Windows Virus & threat protection might suspect the game as malware or malicious program preventing it from starting normally. By setting an exclusion you can resolve the Diablo 3 error. Here are the steps:
- Press Windows Key + I and select Update & Security.
- Click on Windows Security > Virus & threat protection.
- Under Virus & threat protection settings, click on Manage settings
- Scroll down to locate Exclusions
- Click on Add or remove exclusions
- Click on Add an exclusion and select Folder
- Navigate to the game folder and click Select Folder.
- If prompted provide the permission.
Check if the 1016 Diablo 3 error still appears.
Kaspersky Internet Security
- Home >> Settings >> Additional >> Threats and Exclusions >> Exclusions >> Specify Trusted Applications >> Add.
AVG
- Home >> Settings >> Components >> Web Shield >> Exceptions >> Set the exception.
Avast Antivirus
- Home >> Settings >> General >> Exclusions >> Set the exclusion.
Fix 2: Run the Game in Windows 7 Compatibility Mode
Diablo 3 was initially released for Windows 7 environment, so if you are running it on Windows 8 or 10, that might be the problem. Not to indicate that running the game on Windows 10 causes problems, but running on Windows 7 compatibility might fix the problem. A number of users were able to solve Diablo 3 error code 1016 when they tried this fix suggested by a user on the forum. The best way to do this is via the Desktop shortcut of Diablo 3. Here are the steps to change the compatibility.
- Right-click on the Desktop shortcut of Diablo 3 and select Properties
- Click on the Compatibility tab and check Run this program in compatibility mode for:
- From the drop-down menu, select Windows 7
- Next, check the box that reads Run the program as an administrator
- Click Apply and OK
- Restart the computer and check if the error has disappeared.
Fix 3: Disable Internet Protocol Version 6 (IPV6)
When running an older game, the IPV6 causes problem as the games are designed to run with IPv4, so disable IPv6 to eliminate the error. Disabling IPv6 is one of the most effective solutions for this problem. Here are the steps to disable IPv6.
- Press Windows Key + I and click on Network & Internet
- Under Change you network settings, select Change adapter options
- Right-click on your active network and select Properties
- Locate and uncheck Internet Protocol Version 6 (TCP/IPv6)
- Now, restart your computer and check if the Diablo 3 error code 1016 has disappeared.
Fix 4: Use These Commands to Release and Renew IP
Address
Another reason you could encounter this error is if there is a problem with your IP address. You can fix the problem by following the below steps.
- Ensure that the game is closed
- In the windows search type Command Prompt
- Select Run as administrator and Yes
- Type the following command – ipconfig/flushdns and press enter;
- Next type ipconfig/release and press enter
- Type ipconfig/release6 and press enter
- Lastly, type ipconfig/renew and press enter
Now try running Diablo 3 and if the Diablo 3 error code 1016 sill appears.
Fix 5: Reinstall Diablo 3
If everything has failed to eliminate the error, uninstalling and reinstalling the game should fix the error. You can uninstall the game from the Battle.net desktop application. Once you have uninstalled the game, restart the computer and install a fresh copy of the game. Now try playing the game and the error should have gone.
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