Battle.net Not Working: Check Blizzard Status and Fix BLZ Errors

When Battle.net is not working, check the BlizzardCS account on X and Blizzard Support’s Weekly Maintenance Schedule before you troubleshoot. Blizzard’s Connection Troubleshooting article tells players to check BlizzardCS for service interruptions before trying any other step. If Blizzard reports nothing, look up your exact BLZ error code on Blizzard Support and work through the fixes for your PC and network.

Our live Battle.net status page shows recent reports from our checks. We also track World of Warcraft, Overwatch 2 and Diablo IV separately.

Is Battle.net down right now?

Blizzard Support points players to its social accounts and a weekly maintenance article. Use these checks in order.

1. Look at BlizzardCS on X. Blizzard’s maintenance article also lists the Bluesky account @support.blizzard.com for updates.
2. Open Blizzard Support’s Weekly Maintenance Schedule. It has tabs for the Americas and Europe and gives start and end times in Pacific time.
3. Compare with our Battle.net status page and the page for your game.
4. Try the PC on a phone hotspot. If Battle.net works there, your home network is the cause.

Plans change, so check the article on the day. Our guide on telling whether a service is down or just you explains the hotspot test.

What do Battle.net BLZ error codes mean?

Blizzard Support has a separate article for each BLZ code, with the message you see and the steps to fix it. The table covers common login, download and install codes as of November 2026.

Code or message	Meaning, per Blizzard Support	What Blizzard says to do
BLZBNTBGS8000000F (“Your login details were incorrect”)	The login servers received invalid information, such as a wrong email, password or authenticator code, or an authenticator that is out of sync	Re-enter your email and password, reset the password if needed, and enter the current authenticator code. Codes expire in 30 seconds.
BLZBNTAGT000008A4 (“Failed to download files from Battle.net”)	The Battle.net desktop app cannot download a file it needs for installation or patching	Close the app and wait for Agent.exe to leave Task Manager, then relaunch. Restart the PC if it continues, improve a wireless connection and run the repair tool.
BLZBNTBNA000000C9 (“We aren’t able to install this game”)	The Battle.net desktop app may not be up to date	Restart the app to clear stalled Agent processes. If it continues, uninstall and reinstall the Battle.net app.
Waiting on Another Installation or Update	Your region may be patching or in maintenance, or another update is in progress	Check BlizzardCS, then see the update steps below.

If your code is not listed, search the exact code on us.support.blizzard.com. BLZ codes are long, so copy every character. Do not guess at the meaning from a similar code.

How do I fix a Battle.net update or download that is stuck?

Blizzard’s article on “Waiting on Another Installation or Update” says you may not be able to update while your region is patching or in maintenance. If there is no maintenance, Blizzard’s steps for that message and for failed downloads are these.

1. Check whether another game or the Battle.net app itself is updating.
2. Close the Battle.net app and wait until Agent.exe disappears from Task Manager, then open the app again.
3. Restart your computer to clear programs and services running in the background.
4. Update your drivers and operating system.
5. Delete the Battle.net Tools folder. Blizzard says this rebuilds outdated or corrupt files automatically.
6. Add Blizzard applications to your security software’s exception list.
7. Run the repair tool for the game to fix damaged files.
8. Run a security scan to remove any viruses or malware.

Blizzard also notes that World of Warcraft addon managers can stop Agent from updating game files. Close them while the game updates.

How do I fix Battle.net disconnects and lag?

Blizzard’s Connection Troubleshooting article covers latency and disconnections for all its games. After you check BlizzardCS, its steps are below.

1. Reset your network devices, so the router is not flooded with data.
2. If you use Wi-Fi, improve the wireless connection or test with a cable.
3. Update drivers and the operating system.
4. Release and renew your IP address and flush your DNS.
5. Close all other applications to free up resources.

The article has a game menu at the bottom with game-specific steps. Our guide to flushing the DNS cache gives the exact commands for Windows and Mac. If nothing online works, start with internet down at home.

Why can’t I log in to Battle.net?

If Battle.net is up but rejects your sign-in, start with your account details. Blizzard’s article for BLZBNTBGS8000000F says the login servers received invalid information. Check these points.

• Type the email and password again instead of using saved details.
• Reset your password through Blizzard’s official account recovery page if it still fails.
• Enter the newest authenticator code. Blizzard says codes expire in 30 seconds, and an old code will fail.
• If you use the Battle.net Mobile Authenticator and codes keep failing, follow Blizzard’s article on re-syncing it.

Never give your password or an authenticator code to anyone who messages you, even if they say they work for Blizzard. Use only us.support.blizzard.com and account.battle.net for help.

Should I reinstall the Battle.net app?

Only after the quicker steps fail. Blizzard recommends reinstalling the Battle.net app for BLZBNTBNA000000C9 when a restart does not clear it. For download and update errors, Blizzard lists restarting, closing Agent.exe, deleting the Tools folder and running the repair tool first. A reinstall during maintenance will not help, because the servers are the cause.

Bottom line

Check BlizzardCS and the Weekly Maintenance Schedule first. If there is no maintenance, look up your exact BLZ code on Blizzard Support, close Agent.exe and restart, then work through Blizzard’s connection steps.

FAQ

Does Blizzard have a server status page?

Blizzard Support’s Connection Troubleshooting article points to BlizzardCS on X for service interruptions. Planned downtime is listed in the Weekly Maintenance Schedule article.

What time is Blizzard maintenance?

It varies by game and region. The Weekly Maintenance Schedule lists each window with start and end times in Pacific time.

What does BLZBNTAGT000008A4 mean?

Blizzard says the Battle.net desktop app could not download a file it needs for installation or patching. Close the app, wait for Agent.exe to end, and relaunch.

Why does Battle.net say “Waiting on Another Installation or Update”?

Another update may be running, or your region may be patching. If neither applies, Blizzard suggests restarting and deleting the Battle.net Tools folder.