The Tool Desk
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Steam showing 0 B/s does not always mean the download has failed. During an update, Steam may stop receiving data temporarily while it allocates disk space, patches existing files, or installs content already downloaded. The quickest way to identify the problem is to open the Download Manager and compare the network and disk activity.
If the disk graph is still active, let Steam finish its current processing stage. If both network and disk activity are idle, work through the checks below in order.
1. Check whether Steam is installing the update
Open Steam’s Download Manager by clicking Downloads at the bottom of the client, or select View > Downloads. You can also open the Downloads entry from the Library tab.
Look at the affected game’s progress and the activity graphs:
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| What you see | What it usually indicates | What to do |
|---|---|---|
| Network at 0 B/s, disk activity continuing | Steam is allocating space, patching, or installing downloaded files | Wait for the disk operation to finish |
| Network and disk both idle | The download may be paused, queued, blocked, or genuinely stuck | Continue with the checks below |
| Download repeatedly switches between activity and 0 B/s | Steam may be processing large files between network transfers, or the connection may be unstable | Check storage and network conditions |
Steam’s download progress includes disk allocation and installation work, so a zero network rate can be normal. Avoid cancelling an update while the disk graph is active unless Steam has stopped responding; interrupting file processing can lead to another verification or repair cycle.
2. Make sure the download is not paused or restricted
In View > Downloads, check whether the update is paused, waiting behind another download, or affected by a scheduled-download setting. Also check whether launching a game caused Steam to pause the download. Steam normally pauses downloads when a game starts.
To change that behavior, open:
Steam > Settings > Downloads > Allow Downloads During Gameplay
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Enabling this option may allow the download to continue, but it can affect the game’s network performance. It is not automatically the best choice when playing an online game.
You can also change the update behavior for an individual game:
Library > select the game > Manage > Properties > Updates
The available choices include Always keep this game updated, Only update this game when I launch it, and High Priority—Always auto-update this game before others.
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3. Remove a Steam download-speed limit
Open Steam > Settings > Downloads and check Limit Download Speed. If it is enabled, remove the limit or choose the unrestricted option shown by your Steam client.
A configured limit normally causes a consistently lower rate rather than an exact, sudden stop at 0 B/s. Still, it is a quick setting to rule out—particularly if someone previously configured Steam to avoid saturating the connection.
4. Change Steam’s download region
Steam selects a content server based largely on your location. That server can become congested or experience a connection problem even when your general internet connection is working.
Go to Steam > Settings > Downloads > Download Region. Select your own region first. If the problem continues, test another region that is relatively close to you, then restart or resume the download.
Do not assume that selecting a distant country or a region with a lower displayed load will always improve the result. Valve’s guidance is to use your local region or another nearby region. A nearby alternative is useful as a test for a busy or malfunctioning content server, not as a guaranteed speed trick.
5. Clear Steam’s download cache
When the download is genuinely stuck—not merely processing files—the most reliable built-in fix is to clear Steam’s download cache.
- Open Steam > Settings > Downloads.
- Click Clear Download Cache.
- Choose Confirm.
- Sign in to Steam again when prompted.
- Return to View > Downloads and resume the affected download.
Clearing the download cache does not uninstall your installed games. It can, however, interrupt active download state and requires you to log in again. Do not use it while Steam is visibly performing disk-intensive patching unless that process has stopped responding.
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This is different from clearing Steam’s web-browser data. The current official download procedure is the Clear Download Cache control under Downloads. You do not need the older steam://flushconfig command for this fix.
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6. Check the drive, not just the internet connection
A Steam update can appear to have a network problem when the real bottleneck is the storage device. Check the following:
- There is enough free space for the update and its temporary patch files.
- The Steam library drive is connected and visible to Windows.
- An external drive has not gone to sleep, disconnected, or changed its drive letter.
- Another application is not locking or scanning the game files.
- The drive is not reporting errors or running at unusually high activity.
External drives are especially prone to disconnecting during an update. If this repeatedly happens with an external library, an internal drive is generally more reliable.
When the network graph is at 0 B/s but the disk graph is busy, storage or file processing is the more relevant area to investigate. When both graphs are idle, continue with the network and client checks.
7. Check antivirus and firewall interference
Security software can block Steam’s connection or quarantine a partial or newly written game file. Check your antivirus quarantine first. If a legitimate Steam or game file was quarantined, mark it as safe and review the product’s game mode or exclusion settings. Only exclude the affected game folder when you understand the security trade-off and trust the files.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsValve also documents a firewall reset test for Windows:
- Exit Steam.
- Open your firewall configuration.
- Remove existing permission entries for
steaminstall.exe,steam.exe,hl.exe,hl2.exe, andsteamTmp.exe. - Start Steam again.
- Allow Steam to create fresh permissions when Windows or the firewall prompts you.
- Permit the Steam executables for TCP and UDP traffic.
- Restart the computer and test the download.
Do not leave the firewall disabled as a permanent fix. Temporarily disabling security software is useful only as a controlled diagnostic test, and should be followed by re-enabling it.
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8. Test the network connection
Restart Steam and your router, then test the download again. If possible, connect the computer directly to the router with Ethernet. A wired test can distinguish a Steam-server issue from intermittent Wi-Fi or powerline interference.
Also compare Steam with another internet activity:
- If websites and other downloads also fail, investigate the router, ISP, or local network.
- If only Steam stops, test another nearby download region and check firewall or third-party security software.
- If the issue happens mainly during evening hours, congestion or ISP traffic shaping may be involved.
- If you are on a university, workplace, or managed network, a proxy or blocked Steam port may be responsible.
Check Steam’s server-status information before repeatedly changing local settings. Steam’s required ports cannot simply be remapped to HTTP or replaced with an arbitrary custom port range.
9. Verify the affected game’s files
Use file verification when the problem is limited to one game, or when the update has failed, files are missing, or the installation appears damaged. It is not a general internet-speed fix.
- Open Library.
- Right-click the game, or click its gear icon.
- Choose Properties….
- Open Installed Files.
- Select Verify integrity of game files.
Verification can take several minutes. One or more files may fail verification normally because some local configuration files are not intended to be replaced. Do not verify multiple games at once, and avoid running verification alongside intensive work such as virus scanning or disk defragmentation.
10. Repair Steam’s client files as a later step
If Steam itself appears corrupted after the earlier checks, repair the client without deleting the installed-game files:
- Exit Steam completely.
- Open the Steam installation folder, commonly
C:Program Files (x86)Steam. - Delete everything in that folder except
steam.exeand thesteamappsfolder. - Restart the computer.
- Launch
steam.exedirectly from the Steam folder, rather than using an old shortcut.
Steam will reacquire its client files while the games in steamapps are preserved. This is a recovery step, not the first thing to try. On macOS, similar repair instructions can have consequences for mods or custom content, so do not blindly apply the Windows procedure.
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| Symptom | Best next step |
|---|---|
| 0 B/s while disk activity is high | Wait; Steam is probably allocating, patching, or installing files |
| 0 B/s immediately after launching a game | Check Allow Downloads During Gameplay |
| Only one game is affected | Check its update settings, storage space, and verify its files |
| All Steam downloads are stuck | Check download region, cache, firewall, router, and Steam server status |
| Steam is slow but not stopped | Compare bytes with bits, remove speed limits, and test a nearby region |
| The issue occurs only on an external drive | Check the drive’s connection and consider moving the library to an internal drive |
Why Steam’s speed can look lower than expected
Steam normally reports download speed in bytes per second, while internet plans usually advertise bits per second. There are eight bits in one byte. For example, 768 KB/s is approximately 6,144 Kb/s, or about 6 Mb/s, before normal measurement differences.
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This explains why Steam can appear to download more slowly than the number on an internet plan. It does not explain a true sudden pause at exactly 0 B/s. Also, a Windows network icon or adapter-status speed may show the local link between the computer and router rather than actual internet throughput.
What not to do first
- Do not assume Steam’s servers are down solely because the network graph reads 0 B/s.
- Do not cancel an update while disk activity shows that patching is still underway.
- Do not confuse the download cache with Steam’s browser cache.
- Do not switch to a faraway country as a guaranteed speed improvement.
- Do not reinstall Steam before trying the built-in cache, region, network, and file checks.
FAQ
Why does Steam show 0 B/s but continue downloading?
Steam may be allocating disk space, patching existing files, or installing data it already received. Check the Download Manager’s disk activity before assuming the connection has failed.
Will clearing Steam’s download cache delete my games?
No. Steam’s Clear Download Cache option does not remove installed games, but it can interrupt download state and requires you to sign in again.
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Should I change Steam to a different country?
Use your own region first, then test a relatively nearby region. A nearby alternate content server may be less congested, but a distant country is not a guaranteed speed improvement.
Does Steam pause downloads when I start a game?
Steam normally pauses downloads when a game launches. You can change this under Steam > Settings > Downloads > Allow Downloads During Gameplay, although continuing the download can affect the game’s network performance.
Will verifying game files fix Steam’s internet speed?
No. Verification repairs missing or damaged game data. It is useful when one game has a failed update or corrupted installation, but it will not fix weak Wi-Fi, a congested content server, or a firewall problem.
Why is Steam’s speed lower than my internet plan?
Steam generally displays bytes per second, while internet plans use bits per second. Divide the advertised bit rate by eight for a rough bytes-per-second comparison.
The Bottom Line
Start in View > Downloads: 0 B/s with active disk usage usually means Steam is processing the update, not that the download has failed. If network and disk activity are both idle, check pause settings, remove any speed limit, test your local or a nearby download region, and then use Steam > Settings > Downloads > Clear Download Cache > Confirm. After that, investigate storage, antivirus, firewall, router, and network issues. Verify the game’s files or repair Steam only when the earlier steps point to damaged installation or client data.
