Confirmed record
What the current sources confirm
- Official documentation lists 15637 as the default queryPort and says IPv4 is required for multiplayer.
- The official troubleshooting guide lists cache clearing, FlushDNS, Google DNS, and preferring a wired connection as checks.
- Official guidance says Steam profile privacy settings can affect whether a P2P server appears in the server list.
Do not assume
What this page does not confirm
- Final 1.0 rules, every network-failure cause, server status, third-party network-tool effects, and exceptions not stated in this source package.
- Player experience, media claims, and community discussion do not replace the official facts in this package.
Review queue
When this record needs checking again
- Current source boundary: official knowledge base updated September 11, 2026.
- Review trigger: the October 15, 2026 official 1.0 update notes, knowledge-base article, or official in-game documentation.
- Keep unconfirmed details marked as unconfirmed; do not fill gaps with speculation, player posts, or older-version assumptions.