- Right-click on the Diablo IV application on your PC.
- Select Properties > Click on the Compatibility tab.
- Select the Run this program as an administrator box to enable it.
- Click on Apply and select OK to save changes.
Make sure to do the same steps for the Battle.net launcher too. It should help you to fix the issue easily.
3. Check the Internet Connection
You can next check the internet connection status at your end, whether you’re using a wired (ethernet) connection or a wireless (Wi-Fi) network. Sometimes multiple device connectivity with the same network can also cause slower speed and lack of stability. Sometimes, it’s better to switch between wired and wireless or vice versa to check for the same. Additionally, you can check for the data speed test online while connected to the same network or try playing any other multiplayer online game to check for the issue.
4. Update the Diablo IV Game
If in case, you haven’t updated your Diablo IV game for a while then make sure to follow the steps below to check for updates and install the latest patch (if available). An outdated game version might cause Error Code 30008 to Diablo IV in some scenarios. To do so:
- Open the Battle.net desktop app on your PC.
- Now, click on the Diablo IV game.
- Click on the cogwheel icon (settings) next to the Play button.
- Select Check for Updates and wait for the process to be completed.
- If there is an update available, make sure to download and install the game update.
5. Repair the Corrupted Game Files
Sometimes issues with the corrupted or missing game files on the PC might occur several conflicts when it comes to launching the game or during the gameplay. Luckily, you can easily verify and repair the installed game files on the PC version with the help of the game launcher by following the steps below.
- Launch the Battle.net client on your PC.
- Now, click on the Diablo IV that you’re trying to repair.
- Click on the cogwheel icon (settings) next to the Play button.
- Select Scan and Repair > Click on Begin Scan.
- Wait for the repair to finish > Once done, close the launcher, and reboot the PC to apply changes.
6. Check the Server Status of Diablo IV
Sometimes issues with the technical glitch or server downtime of Diablo IV might trouble in the game running as well as occurring Error Code 30008. Any kind of server outage can occur such issues whatsoever. Make sure to check out the Diablo IV Server Status via DownDetector to get to know if there is an issue with the game server or not. At the time of writing this article, we can see that there are a few server issues visible in the last 24 hours.
Do keep in mind that sometimes waiting for a couple of hours might fix the server-related outage issues quite easily. You can also follow the official @Diablo Twitter handle to check for all the reports, latest news, and updates.
7. Disable Antivirus and Firewall
The chances are high enough that maybe your default Windows Defender Firewall protection or any third-party antivirus program is preventing the ongoing connections or game files to run properly. So, make sure to temporarily disable or turn off the real-time protection and firewall protection. Then you should try running the game to check if the specific error appears or not. To do this:
- Click on the Start Menu > Type firewall.
- Select Windows Defender Firewall from the search result.
- Now, click on Turn Windows Defender Firewall on or off from the left pane.
- Select the Turn off Windows Defender Firewall (not recommended) option for both the Private & Public Network Settings.
- Once selected, click on OK to save changes.
- Finally, restart your computer.
Now, you’ll need to turn off the Windows Security protection by following the steps below:
- Press the Win+I keys to open Windows Settings.
- Now, click on Update & Security > Click on Windows Security from the left pane.
- Click on the Open Windows Security button.
- Go to Virus & threat protection > Click on Manage Settings.
- Just Turn Off the Real-time protection option.
- If prompted, click on Yes to proceed further.
8. Flush DNS Cache
Ensure to flush the DNS cache on your computer to easily remove stored cache files related to the internet configuration. It can also help the PC and the internet settings to freshly connect with the game servers without any corrupted or older cache data. To do that:
- Press the Windows key on the keyboard to open the Start menu.
- Type Command Prompt and search for it.
- Now, right-click on Command Prompt > Select Run as administrator.
- If prompted by UAC, click on Yes to proceed > Type the following command in cmd and hit Enter:
ipconfig /flushdns
- A successful message will appear > Close the command prompt window.
- Now, reboot the PC to apply changes.
9. Check Your NAT Type
If in case, this specific Error Code 30008 persists then make sure to check your NAT Type before changing the DNS server addresses. It’s most likely that you’re using a blocked or restricted NAT Type at your end without knowing about it. There are three kinds of NAT Type such as NAT Type (Open), NAT Type 2 (Moderate), and NAT Type 3 (Restricted). If you’re using the NAT Type 2 or 3 then the chances are high that your video game won’t run properly or connect to the servers.
You should first check to see if your NAT type is restricted or not. The simplest method of checking your NAT Type in Windows 10/11 is through Xbox Networking:
- Press the Win+I keys to open Windows Settings.
- Click on Gaming from the left pane.
- Next, click on the Xbox Networking tab.
- Then you can run the network test which will include your NAT type. If in case, your NAT type is already Open, then skip this step. If not, you can follow the steps to turn on UPnP & Open NAT Type.
Steps to Enable UPnP and Open NAT Type:
- Log into your Router’s dashboard panel > Go to the Settings menu of the router.
- Enter the default username and password by visiting the router’s default IP address to get into the admin dashboard.
- Once done, make sure to set the user role to admin.
- You’ll need to locate the UPnP Setting in your router’s panel.
- Head over to the Advanced Settings or Network Settings.
- Just Turn On the UPnP Setting > Reboot the router manually.
10. Use a Public DNS Server (Google DNS)
You can try changing the DNS server to Google DNS which is a public DNS address to easily fix multiple connectivity errors. the server connectivity errors. Sometimes your private DNS server from the ISP might get blocked or doesn’t run well with game servers across the globe. So, you can follow the steps below to use the Google DNS server address for better reachability and faster connectivity speeds. Some players have found this guide helpful to fix the issue.
Please Note: You should write down your existing DNS server address from the screen as a backup. If anything goes wrong, you can change it to the previous DNS address and save the changes.
- Open the Start menu > Go to Control Panel.
- Click on Network and Internet > Select Network and Sharing Center.
- Select Change adapter settings > Right-click on the active network connection.
- Click on Properties > Select Internet Protocol Version 4 (TCIP/IPv4) in the list.
- Click on Properties > Select Use the following DNS server addresses.
- Enter 8.8.8.8 for the Preferred DNS Server addresses.
- Next, enter 8.8.4.4 for the Alternate DNS Server addresses.
- Once done, click on OK to save changes, and restart the PC.
If none of the methods did come in handy then make sure to contact Blizzard Technical Support Forums for further assistance. Sometimes getting forum support or agent help might fix the issue quite easily. If the issue doesn’t fix then simply create the support ticket for the same with the required details which will help the technical team or developers to investigate the issue properly.
That’s it, guys. We assume this guide was helpful to you. For further queries, you can comment below.
