Fix: Diablo 4 Error Code 300008 Your Login Attempt Has Timed Out on PC

Diablo 4 is one of the magnificent action role-playing titles in the Diablo series after waiting for almost four years and has been received quite well in the gaming market. It’s currently in the early access mode and going through a couple of bugs or stability issues that we can’t deny. However, the standard edition of Diablo IV is now available for everyone to buy and enjoy the dungeon experience. Meanwhile, some players are facing Diablo IV Error Code 300008 Your Login Attempt Has Timed Out on the PC.

As per multiple reports on the Blizzard Forum, it seems that Error Code 300008 basically indicates ‘Unable to login’ to the game or eventually to the game servers. To be precise, this error notice says “Your login attempt has timed out. Please try again (Code 300008).” Now, if you’re also one of the victims to encounter such an issue then don’t worry. This can happen due to the server outage or downtime whenever the load becomes high and the maximum number of players trying to get into the game.

Fix: Diablo IV Error Code 300008 Your Login Attempt Has Timed Out on PC

Talking about the possible reasons behind this error, the chances are high that your internet connection has some issues or temporary glitches with the computer or Wi-Fi Router. Sometimes an outdated game version, conflicts with the networking driver, corrupted game files, and DNS server issues can also trouble you a lot. So, it’s recommended to follow all methods one by one until the problem gets fixed. Now, without wasting any more time, let’s get in.

1. Restart the PC

First of all, you can do is simply rebooting the PC to ensure there is no issue with the temporary glitch on the system or cache data whatsoever. In some cases, a normal restart of the system might come in handy to fix several issues and errors.

2. Power Cycle the Wi-Fi Router

Sometimes only rebooting the game or device or switching the internet connection may not be useful because there might be an issue with the Wi-Fi router. In that scenario, performing the power cycle on your Wi-Fi router can also fix the internet connectivity-related issues completely. To do that:

Turn off the router first > Once the LED indicators stopped, unplug the power cable from the router.
Now, wait for around 30 seconds, and then plug back the power cable into the router.
Turn on the router and check for the error again.

3. Check the Internet Connection

You should also try checking out the internet connection at your end to ensure there is no issue with a poor or unstable network. If the internet connection isn’t working well then ensure to switch the wired network to wireless or vice versa. Otherwise, you can try performing the power cycle method on a Wi-Fi router to refresh the connectivity.

4. Flush DNS Cache and Reset Winsock

It’s also possible that your Windows system has gathered plenty of DNS cache data related to the internet configuration. You can follow the steps below to easily connect with the game servers after removing the DNS resolver cache data from the system.

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.
Click on Yes to run with the admin access > Once the command prompt window opens, type the following command and hit Enter:

ipconfig /flushdns

A successful message will appear that says, “Successfully flushed the DNS Resolver Cache.”
Once done, make sure to run the following command line by copy-pasting and pressing the Enter key one by one:

ipconfig /release

ipconfig /renew

netsh winsock reset

netsh int ip reset

netsh interface ipv4 reset

netsh interface ipv6 reset

netsh interface tcp reset

Once all is done, you should reboot the PC to apply changes.

5. Allow the Game File to Windows Defender and Firewall

You can try whitelisting the Diablo 4 program in the Windows Firewall protection by following the steps below to fix multiplayer connectivity issues.

Open the Start menu > Search for Control Panel and open it.
Go to Systems and Security > Open Windows Firewall.
Select Allow an app or feature through Windows Firewall.
Now, click on Change settings > Select Allow another app.
Select Browse > Click to select Diablo IV.
Click on Add and make sure to save changes.

Additionally, you should allow the Diablo 4 game to Windows Defender antivirus by following the steps below to avoid blocking issues.

Press the Win+I keys to open Windows Settings.
Go to Privacy and Security > Click on Windows Security.
Click on Virus and threat protection > Select Manage ransomware protection.
Select Allow an app through Controlled folder access > Click Add an allowed app.
Click on Browse all apps > Now, select Diablo IV.
Then click on Open > Make sure to save changes.

6. Set the Date and Time Correctly

Multiple players did mention that configuring the date and time correctly helped them a lot to fix the Diablo IV Error Code 300008 Your Login Attempt Has Timed Out on the PC. So, you can also try this method because an incorrect date and time might affect the game’s server connectivity issue in most cases.

Press the Win+I keys to open Windows Settings.
Click on Time & Language > Click on Date & Time.
Make sure that the Set time automatically should be turned off.
Next, select the correct Time zone as per your country/city.
Then Turn On the Set time automatically option again.
Click on Sync now to check if the date and time show correctly.
Otherwise, click on Additional clocks > Click on the Date and Time tab.
Click on Change date and time > Go to Calendar settings.
Set the date and time format > Click on Apply and then OK.
Click on OK again and reboot the PC.

7. Check the Diablo IV Server Status

You should check the Diablo IV server status by visiting the @BlizzardCS Twitter handle or the Battle.net Support webpage to check for the issue. Alternatively, you can also visit the third-party DownDetector Diablo Status webpage to check the server issue. Currently, there are some Diablo IV launch issues and server-side issues present that can trouble a lot of players. So, wait for a couple of hours and then try again. Otherwise, you can try following other methods.

8. Disable Manual Proxy Setup

Keep in mind not to run Proxy Servers on your PC while playing multiplayer online games like Diablo IV because it increases the ping delay or latency which eventually triggers server connectivity errors. To do so:

Press the Win+I keys to open Windows Settings.
Click on Network & Internet > Click on Proxy.
Make sure to Turn Off the Manual Proxy Setup option.
You should also turn off the Automatically detect settings toggle.

9. Do a Network Reset

Another thing you should do is perform a network reset method on your PC by following the steps below to ensure there is no issue with the networking glitch.

Press the Win+I keys to open Windows Settings.
Click on Network & Internet > Go to Advanced network settings.
Click on Network Reset > Click on Reset now.
If prompted, confirm the process.
Once done, reboot the PC, and then reconnect to the respective network again.

10. Try Switching to a Different Network

As we’ve already mentioned previously, if you’re using the wireless (Wi-Fi) network then make sure to use the wired (ethernet) LAN connection on your PC to get faster and more stable internet connectivity. Otherwise, try switching to a different network to temporarily check for the server connectivity issue.

11. Check for Diablo IV Updates

We should also recommend you check the game update manually via the Battle.net client to avoid potential glitches that can come with the outdated game version. An outdated game patch version mostly triggers bugs or stability issues like networking connectivity which can be fixed by following the steps below.

Open the Battle.net launcher > Click on the Blizzard logo from the top left corner.
Go to Settings > Click on Game Install/Update.
Scroll down to the bottom > Click on Apply latest updates and download future patch data for recently played games to enable it.
Next, click on Done to save changes > Restart the Battle.net launcher to apply changes.
It’ll update the game to the available version automatically.

12. Verify and Repair the Game Files

Sometimes missing or corrupted game files might trigger several issues that can be frustrating enough with the game launching. You can follow the steps below to do so:

Open the Battle.net client on your PC.
Click on the Diablo IV game > Click on OPTIONS (Gear icon).
Next, click on Scan and Repair > Click on Begin Scan.
Wait for the verification process to complete.
Once done, close the Battle.net launcher, and restart your PC.

13. Use Google DNS Server

It seems that somehow your specific DNS address is going through some blockage with the Diablo 4 game server. So, you should try using the public DNS address on the PC or router manually adding DNS server addresses.

Press the Win+R keys to open the Run dialog box.
Now, type ncpa.cpl and hit Enter to open Network Connections.
Double-click on the Wi-Fi or Ethernet network from the list.
Click on Properties > Double-click on Internet Protocol Version 4 (TCP/IPv4).

Click to select Use the following DNS server addresses.
Next, enter 8.8.8.8 for the Preferred DNS server and 8.8.4.4 for the Alternate DNS server.
Once done, click on OK to save changes.
Make sure to restart your computer to apply changes.

14. Update Windows

You should also check for the available Windows update on your computer because Microsoft keeps releasing a new security patch update or the cumulative feature update to the latest Windows OS version quite often. If in case, you haven’t updated your Windows system for a while then make sure to follow the steps below to do so. An outdated or corrupted system version may conflict with the game launching or connecting to the game servers.

Press the Win+I keys to open Windows Settings.
Next, click on Update & Security > Select Check for updates under the Windows Update section.
If there is a feature update available, select Download and Install.
It may take a while to complete the update.
Once done, restart your computer to install the update.

That’s it, guys. We assume this guide was helpful to you. For further queries, you can comment below.