| Friend room does not appear |
Region, tag filters, room spelling, host waiting in lobby. |
Use the friend-room checklist, then recreate the room with a short name. |
Reinstalling or changing system files. |
| Public list is empty |
Version after update, filters, region, and Steam online state. |
Restart the game, clear search filters, and try a different region only as a comparison. |
Unofficial server tools. |
| Room appears but join fails |
Password, room capacity, lobby state, and same version. |
Retype password, confirm open slots, and join before the match starts. |
Repeated blind refreshes. |
| Authentication token or sign-in message |
Steam sign-in, input focus, and whether the game was alt-tabbed during startup. |
Restart Steam and the game, then start once without switching windows. |
Account tools or token downloads. |
| Mouse cannot click lobby UI |
Window focus, overlay, and whether input broke after alt-tab. |
Return focus to the game, restart from desktop, and avoid changing display modes mid-login. |
Deleting settings before trying a clean restart. |