- Gaming and consoles
- PC games and launchers
BLZBNTAGT0000138F
Battle.net BLZBNTAGT0000138F on PC: install file will not download
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
BLZBNTAGT0000138F means the Battle.net desktop app cannot download a file needed to install or patch a game. Close the app, wait for Agent.exe to leave Task Manager and reopen it; then check your connection and run the repair tool.
Safety first
Stop and check this first
- Add Blizzard to your security software's exceptions instead of switching protection off, and turn any temporarily paused protection back on: Blizzard's step is configuring the exception list.
Safe checks you can perform
- Close the app and wait for Agent.exe
- Connection quality
- Repair tool for the game
- Security exceptions, other apps and malware scan
Leave these tasks to a qualified professional
- Do not attempt this professional task: Blizzard technical support
- Do not attempt this professional task: Internet provider for the line
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Blizzard technical support
What they doIf the error persists after the Agent restart, a better connection, the repair tool and security exceptions, Blizzard support reviews the case and its logs.
They must show youthe ticket number and what their review of the logs found.
In writingthe code, the game, the time of the error and the steps already tried.
Internet provider for the line
What they doIf downloads only fail on your usual connection, the provider checks the line and the router it supplied.
They must show youtheir line test result.
In writingthe incident number and what was changed.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Close the app and wait for Agent.exe
- Who:
- you.
- How:
- close the Battle.net app, open Task Manager and wait until Agent.exe is no longer listed before reopening Battle.net; if the error persists, restart the computer.
- Result that matters:
- whether the download continues after Agent.exe has fully closed.
- If it continues:
- the Agent process was stuck.
- If the error returns:
- check the connection.
- Evidence to keep:
- the time you restarted and whether Agent.exe closed on its own.
Evidence: BLZBNTAGT0000138F
Connection quality
- Who:
- you.
- How:
- if you use Wi-Fi or a slow line, connect the PC to the router by cable or try another network, and pause other downloads while Battle.net patches.
- Result that matters:
- whether the file downloads on a better connection.
- If it downloads:
- the connection was the limit.
- If it fails on a good connection:
- run the repair tool.
- Evidence to keep:
- the connection type and a speed test result.
Evidence: BLZBNTAGT0000138F
Repair tool for the game
- Who:
- you.
- How:
- run Blizzard's repair tool on the game from the Battle.net app, as Blizzard's linked repair article describes, then retry the update.
- Result that matters:
- whether the scan finishes and the patch installs afterwards.
- If it installs:
- damaged game files were the cause.
- If it fails again:
- check security software and other applications.
- Evidence to keep:
- the scan result and the game name.
Evidence: BLZBNTAGT0000138F
Security exceptions, other apps and malware scan
- Who:
- you.
- How:
- add the Battle.net app and the game to your security software's exception list, close all other applications and run a full scan with your antivirus.
- Result that matters:
- whether the download completes with exceptions in place and nothing else running.
- If it completes:
- security software or another program was blocking it.
- If it still fails:
- contact Blizzard technical support.
- Evidence to keep:
- the exceptions added and the scan result.
Evidence: BLZBNTAGT0000138F
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Gaming and consoles
- Brand
- Battle.net
- Product type
- PC games and launchers
Known code variants
- 138F battle.net
- BLZBNTAGT0000138F Battle.net
- error BLZBNTAGT0000138F
- Whoops! Looks like something broke
- ¡Vaya! Parece que algo está roto
What it means
Blizzard explains that BLZBNTAGT0000138F appears when the Battle.net desktop app is unable to download a file required for installation or patching. The download is handled by the Battle.net Agent (Agent.exe), so the code can come from a stuck Agent process, a wireless or low speed connection, damaged game files, security software blocking Blizzard applications, other applications competing for resources, or malware. Blizzard's steps test each of these in turn; none of them points to a hardware fault.
Warnings and stop conditions
- Loweditorial warning
Add Blizzard to your security software's exceptions instead of switching protection off, and turn any temporarily paused protection back on: Blizzard's step is configuring the exception list.
Evidence: BLZBNTAGT0000138F
Symptoms and causes
Probable causes · in order
- Battle.net Agent stuckCommon
Blizzard's first step is closing the app and waiting for Agent.exe to disappear from Task Manager. It fits if the download resumes after that.
Evidence: BLZBNTAGT0000138F
- Wireless or low speed connectionPossible
Blizzard asks to optimize the connection on wireless or low speed links. It fits if the download works over cable or another network.
Evidence: BLZBNTAGT0000138F
- Damaged game filesPossible
Blizzard suggests the repair tool to fix damaged game files. It fits when one game fails while others patch normally.
Evidence: BLZBNTAGT0000138F
- Security software or other applicationsPossible
Blizzard asks to add Blizzard apps to the security exception list, close other applications and run a malware scan. It fits if the error stops with those changes.
Evidence: BLZBNTAGT0000138F
Virtual technician
Does BLZBNTAGT0000138F still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Blizzard Entertainment · 2026 · official_doc
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