Company Of Heroes 2 Lan Upd

Before launching CoH2:

Alternatively, use PortQryUI or CanYouSeeMe (but remember, LAN tests require internal IPs, not external).

In 2015–2017, several small CoH2 LAN events suffered disconnections because the game briefly checked in with Relic’s matchmaking servers every 90 seconds. If the internet flickered, the LAN game dropped. Organizers had to run two parallel networks: one for gameplay (VPN LAN) and one for authentication (a tethered 4G line). company of heroes 2 lan upd

The existence of the LAN update sits in a legal grey area.

5.1 Terms of Service Violation Modifying the steam_api.dll files constitutes a violation of the Steam Subscriber Agreement. Furthermore, bypassing the Steam authentication DRM is often viewed as circumvention of copyright protection measures under laws like the DMCA (in the US). Before launching CoH2:

5.2 Piracy Concerns Publishers argue that LAN capability facilitates piracy. If a game can be played on LAN without authenticating with the master server, a single copy of the game could theoretically be cloned across multiple machines for a LAN party. This is the primary reason Relic and Sega removed LAN features in the first place. The LAN update inadvertently enables this behavior, which antagonizes the rights holders.

5.3 The Moral Defense Proponents of the LAN update argue under the concept of consumer rights and preservation. If a player has purchased the game, they argue they should have the right to play it offline with friends. They view the lack of LAN as an anti-consumer defect that the community has merely "patched." ⚠️ Known issue: The LAN filter sometimes hides games

⚠️ Known issue: The LAN filter sometimes hides games. If that happens, use Direct Connect (Method 2).

As of 2026, no official LAN-update patch has dropped. However, the community has kept LAN alive through tools like ZeroTier (virtual LAN over internet) and GameRanger. For pure local play, the console open command remains the gold standard.

Even though you are on a LAN, CoH2 tries to use Steam’s ports. You must ensure no firewall is blocking internal UDP traffic.

On every PC (Host & Clients):