How to Solve “Can’t Connect to”? — The Top 4 Fixes

Sherry li
4 min readApr 28, 2021

Blizzard is an Internet-based online game platform developed by Blizzard Entertainment. It also includes the social networking service, digital distribution, and digital rights management.

In the app, users can buy, download, and play various games released by Blizzard, such as Hearthstone, Heroes of the Storm, Overwatch, etc.

Unfortunately, some users received the following error message while trying to connect to the store or play games on the Blizzard launcher:

Can’t Connect to may be temporarily unavailable or your internet connection may be down. Please check your connection and try again.

Let’s see an example.

Can’t connect to I’m unable to connect to or WoW right now. My internet is working fine but even if I use the wow.exe launcher it just gets stuck on connecting.

In addition to WoW, the mentioned error could also happen on Diablo 2 and other games. If you are bothered by the same problem, try the following fixes to solve it.

Fix 1: Restart Your Router

As the error message shows, the problem that games such as Diablo 2 can’t connect to could occur due to network issues. To troubleshoot the problem, you can try restarting your router or modem.

Please unplug the power cable from your router or modem. Wait for at least 2 minutes and then reconnect the power cable. After that, you can connect your computer to the internet and check if the problem disappears. If it still exists, you should move on to the next solution.

Fix 2: Flush DNS and Reset Winsock

To solve network issues, you can also try flushing DNS and resetting Winsock settings. Here are the detailed steps.

Step 1: Press Win + S to open the Windows Search utility. Then search for Command Prompt. Right-click it and select Run as administrator.

Step 2: In Command Prompt, input the following commands one by one and press Enter after each.

When all the commands are executed, you can restart your computer and check if works well without the problem that WoW or Diablo 2 can’t connect to

There might be compatibility issues if your drivers are outdated or corrupted. When you get the not connecting error, you’d better update your drivers, especially the network driver and graphics card driver. You can click here to learn about how to update device drivers.

Fix 4: Allow Through Windows Defender Firewall

Windows Defender Firewall does protect your computer from being attacked by viruses. However, sometimes it blocks some harmless applications from connecting to servers, which causes the not connecting error. In this case, you need to modify the Windows Defender Firewall settings to allow the game platform through Firewall.

Step 1: Go to Control Panel > System and Security > Windows Defender Firewall.

Step 2: Click Allow an app or feature through Windows Defender Firewall.

Step 3: In the following window, click the Change settings button. Then scroll down to locate or Blizzard client, and check the boxes under both Private and Public networks.

Step 4: Click OK to save the changes you have made.

If you are using any third-party software, you might also need to disable it temporarily.

Besides, software conflicts could also lead to the error “can’t connect to”. If you are running any other programs in the background, go to Task Manager and close them.

If all the above methods fail to solve the problem, you might need to reinstall the Blizzard app.


Position: Columnist

Sherry has been a staff editor of MiniTool for a year. She has received rigorous training about computer and digital data in company. Her articles focus on solutions to various problems that many Windows users might encounter and she is excellent at disk partitioning.

She has a wide range of hobbies, including listening to music, playing video games, roller skating, reading, and so on. By the way, she is patient and serious.

Originally published at on April 28, 2021.