Steam’s unable to sync warning puts a question mark over which device has your latest save. Launching anyway risks conflicting saves and lost progress. Start with the connection and Cloud settings, then check the device where you last played before choosing which save to keep.
Let Steam finish syncing before you play
An interrupted internet connection stops Steam from synchronizing your saves.
Restore your internet connection.
Reconnect Steam.
If the game is still running, save your progress.
Exit the game normally.
Leave Steam running until synchronization finishes before opening the game on another device. Large saves and slow upload connections take longer, so give the upload time to finish.
If synchronization stays stuck, exit Steam normally once any active save operation has finished.
Restart your computer.
Reopen Steam and let it connect and synchronize.
Check both Steam Cloud settings
Cloud synchronization needs to be enabled for both Steam and the affected game.
- 1.Open Steam > Settings > Cloud.
- 2.Enable the Steam Cloud synchronization control for supported applications.
- 3.In your Library, right-click the affected game and select Properties....
- 4.Under General, enable the game’s Steam Cloud control.
Return to the device with your latest save
Open Steam on the computer where you last made progress.
Let that computer finish synchronizing its saves.
Reopen Steam on the destination computer after the upload finishes.
If you left the game suspended on Steam Deck or another SteamOS device, wake that device.
Resume the suspended game.
Save your progress in the game.
Exit the game normally.
Allow its upload to finish before playing elsewhere.
Always finish this sequence before switching devices, particularly with games that lack Dynamic Cloud Sync integration.
Choose the right save when Steam reports a conflict
The Cloud Conflict dialog appears when you need to choose which save to keep. Your choice overwrites the other version, so don't decide by timestamp alone.
Compare the timestamps with the progress you remember making on each device.
Select Cloud Save or Local Save according to which contains the progress you want to keep.
If the dialog shows a Continue button, choose it to use that version. In versions of the dialog without that button, selecting Cloud Save or Local Save applies your choice straight away.
If you cannot tell which save is correct, choose Cancel.
Check your connection when Steam cannot get online
A home-network connection problem blocks Steam from reaching its services.
Unplug your router and modem from power for 30 seconds. Do not use the factory-reset button.
Reconnect their power.
Wait for connectivity to return.
Test a direct Ethernet connection between your device and the router. Steam Deck needs a compatible USB-C Ethernet adapter or dock.
If the connection still fails, test another network, preferably through a different internet service provider.
For failures that happen only at particular hours, test at another time.
Contact your ISP about recurring failures tied to particular hours.
If Steam itself still cannot connect after these local checks, wait a few hours before trying again. This wait applies to a temporary service interruption, not an isolated sync warning in one game.
Restore access when security software blocks Steam
Use these checks when a firewall or security notification identifies a blocked connection or blocked access to saves. Firewall permissions deserve a check when connection failures begin after a Steam update.
Close Steam before reviewing its firewall permissions.
On Windows, open Windows Security > Firewall & network protection > Allow an app through firewall > Change settings.
Enable the appropriate Steam entry. If it is absent, use Allow another app to locate and add the genuine Steam executable.
Complete any administrator approval prompt.
Reopen Steam after correcting its permissions.
If Controlled folder access reports blocking Steam or the game, open Windows Security > Virus & threat protection > Manage ransomware protection > Allow an app through Controlled folder access.
Add the genuine executable identified in the blocking notification.
On a Mac with a save-folder access problem, open the Apple menu > System Settings > Privacy & Security > Files & Folders.
If Steam or the game is listed, enable access to the location containing its saves.
Protect your saves and get help with persistent errors
Check the game’s store page for Steam Cloud. In Library, select the game and open Support above Activity to find its official support contact. Ask the developer about save locations, restoration, and which saves transfer between Windows, macOS, Linux, and SteamOS.
To preserve a cloud copy, sign in to Steam Remote Storage, open the game’s file listing, and select Download beside the required file. Keep the copy separately before attempting restoration, which depends on the game. Downloading it does not repair synchronization.
To keep playing with usable local saves, open Library, right-click the game, and select Properties... > General. Disable the game’s Steam Cloud control. This bypasses synchronization: subsequent progress stays local.
For unresolved errors, open I am having trouble with Steam Cloud and choose Contact Steam Support. Include the game, affected devices, error, and relevant entries from cloud_log.txt in Steam’s logs folder. Steam Support cannot guarantee recovery of lost saves.
Frequently Asked Questions
Where do I find Steam’s cloud log?
Open cloud_log.txt in Steam’s logs folder. The default locations are C:\Program Files (x86)\Steam\logs on Windows, ~/Library/Application Support/Steam/logs on macOS, and ~/.local/share/Steam/logs on Linux. Look for entries for the affected game.
Will verifying game files or clearing the download cache fix Steam Cloud?
Game-file verification repairs installed game content; it does not recover overwritten saves or directly repair cloud storage. Use download-cache clearing for accompanying download or startup problems. Neither is a dedicated Steam Cloud repair.
What should I do if Steam is blocked on a school or work network?
Ask the network administrator to permit Steam’s required connections. If organizational policy prevents firewall changes on a managed Windows device, the administrator must change that policy.
How do I restart Steam Deck while troubleshooting?
Use Steam > Power > Restart. Only if the device is unresponsive, hold the Power button for 4 seconds on LCD or 7 seconds on OLED. If that fails, Valve specifies 10 seconds on LCD or 16 seconds on OLED.