What to do
- Update the game before arranging the session. Private hosting was added in 1.0.5; the latest official announcement found for this guide is 1.0.12. Ask your group to finish updates before testing a join.
- For a fresh lobby, select the private option when hosting. For a session already running, open server settings and change the session type. Do not assume the change has applied immediately.
- Plan a stopping point with your group, save your progress and restart after changing the type. The patch does not specify whether a lobby restart alone is sufficient; a conservative checklist is to quit and relaunch the game, then check the hosting setting again.
- Invite one intended player first and ask them to confirm they reached your session. This is a simple setup check before gathering the whole group. If it fails, note whether the invitation never arrived, was accepted but stalled, or produced an error; use the linked co-op troubleshooting guide for that separate problem.
- Before resuming a boss route, agree who will carry the summon item and who will keep the quest drop. Open the protected-item list together so a successful reunion does not end with someone selling the next quest hand-in.
Before you leave this page
Private hosting controls how players join; the announcement does not describe removing players who are already connected. This page verifies the documented setting and restart requirement, not a specific button sequence or an in-game connection test. Back up a valued campaign before broader troubleshooting, and keep the original save while investigating.
Use the live tools and records
- Diagnose a failed friend invitation
- Back up a shared campaign
- Agree which quest items to keep
- Plan your group's next boss
Evidence and limits
Game facts are drawn from the sources below and are not presented as first-party telemetry. Patch-sensitive routes should be checked against the current game build.