Name the failure before retrying
| You see | What the update establishes |
|---|---|
| Failure at online-service startup | The game now checks internet access and times out cleanly where online services are blocked. |
| Join fails because you are not signed in | The updated game reports that condition rather than hanging. |
| Join attempt times out | The announced lobby connection timeout is ten seconds. |
| Pulsing icon during play | The HUD indicator means your connection to the host is struggling. |
| Kick or ban notice | The update adds kick messages and ban reason/expiry information. Treat that message as distinct from a network timeout. |
On a small screen, scroll the table sideways to see every column.

Sources: September 21 official update
Check the matching prerequisites
- Confirm the account is signed in, both players have the intended store version and both use the current game update.
- Read the game’s crossplay permission prompt and account privileges. The September patch respects these choices during joining.
- Confirm the host’s intended visibility and any password prompt. Use the private lobby guide for the documented invite-only route.
- Check that the device can reach its platform services. A working browser alone does not prove that the game’s online service is reachable.
“PC” is a device category, not one shared storefront. Steam and Xbox on PC must be identified separately. The platform reference helps identify the actual product.
Sources: September 21 official update · Official Steam listing · Official Xbox listing
Try a small check and keep the result
Capture the message
Note the exact error, build, store, device, host and whether any other player can join. Record when the failure happens.
Retry once after prerequisites are checked
Have the intended host recreate the arranged session and send a fresh invite. Compare with a matching-store lobby if available; record whether only one host or every lobby fails.
Separate local rendering from host connection
A pulsing connection icon belongs to the network/host condition. If the game runs slowly without it, use the FPS checks instead.
Report a persistent failure
Use the game’s Steam Bug Reporting forum with the exact message and the tested store/device pair. Keep the result of each small check; avoid changing many settings at once.
The offline feature added in September may let a player continue when online access fails. It does not turn a failed multiplayer invitation into an online connection. The version summary keeps these changes together.
If the session works but a launch interaction locks, use the cannon checks for that separate documented fix.
Sources: September 21 official update