Gaming · Windows
Troubleshoot Warzone 'Disconnected from Steam' on PC
Source-checked About 10 minutes
Answer
Record when Warzone disconnects from Steam, check service status, restart both clients, and follow Activision's matching PC guidance.
Before you start
Check Activision and Steam service status, save the full error, and note whether the disconnect occurs at launch, sign-in, matchmaking, or during a match. Avoid unlinking accounts, deleting configuration folders, or resetting the network before isolating the stage.
Record the exact error
Save the full disconnect message and note whether it appears before sign-in, matchmaking, or a match. Include the time, region, connection type, and whether other Steam games remain online; this distinguishes a broad outage from a Warzone-only failure.
Check current PC guidance
Use Activision's current Warzone PC troubleshooting page for the matching symptom. Follow the current Activision PC checks for the symptom and confirm Windows, Steam, Warzone, and the graphics driver meet the supported state.
Change one supported item at a time
Restart Steam and Warzone, then apply only the official guidance that matches your setup before testing again. Restart the clients and network normally, disable only a confirmed interfering VPN, and test one supported change at a time so the result is attributable.
Verify the result
Complete a fresh sign-in and one matchmaking test. Confirm Steam stays online and Warzone reaches the same mode that previously failed before treating the issue as resolved.
Troubleshoot Warzone Steam disconnections
If the error persists on more than one trusted network, preserve logs and the exact time for Activision Support. If Steam itself disconnects across games, use Steam support or the ISP path. Do not repeatedly relink Activision and Steam accounts. For the Steam version, Activision specifically links Steam's Verify integrity of game files procedure and recommends closing programs that interfere with Steam. Use those supported checks before deleting download caches or configuration folders.
Optional sponsored tool
The supported procedure above does not require this third-party product. This optional link is retained from the original tutorial; Tech How may earn a commission at no extra cost to you.
Video walkthrough
Sources and verification
Checked against official documentation on . Scope: Windows.
Follow the linked first-party guidance if labels differ after a platform or app update.