v1.12.6.2 (Spring Update 2026)

Barotrauma/BarotraumaShared/SharedSource/Networking/NetConfig.cs

@@ -39,6 +39,12 @@ namespace Barotrauma.Networking
 
         public const int MaxEventPacketsPerUpdate = 4;
 
+        /// <summary>
+        /// When enabled, uses more lenient Lidgren handshake timeouts (longer connection timeout, more retry attempts).
+        /// Useful for local testing when running multiple instances on the same machine under heavy load.
+        /// </summary>
+        public static bool UseLenientHandshake;
+
         /// <summary>
         /// Interpolates the positional error of a physics body towards zero.
         /// </summary>

Barotrauma/BarotraumaShared/SharedSource/Networking/NetIdUtils.cs

@@ -33,13 +33,7 @@ namespace Barotrauma.Networking
         /// regarding its relation to values other than the input.
         /// </summary>
         public static ushort GetIdOlderThan(ushort id)
-#if DEBUG
-            // Debug implementation has some RNG to discourage bad assumptions about the return value
-            => unchecked((ushort)(id - 1 - Rand.Int(500, sync: Rand.RandSync.Unsynced)));
-#else
-            // Release implementation favors performance
             => unchecked((ushort)(id - 1));
-#endif
 
         public static ushort Difference(ushort id1, ushort id2)
         {

Barotrauma/BarotraumaShared/SharedSource/Networking/Primitives/Auth/SteamAuthTicketForEosHostAuthenticator.cs

@@ -15,13 +15,18 @@ sealed class SteamAuthTicketForEosHostAuthenticator : Authenticator
     {
         string ticketData = ToolBoxCore.ByteArrayToHexString(ticket.Data);
 
-        var client = new RestClient(ServerUrl);
-
-        var request = new RestRequest(ServerFile, Method.GET);
+        var client = RestFactory.CreateClient(ServerUrl);
+        var request = RestFactory.CreateRequest(ServerFile);
         request.AddParameter("authticket", ticketData);
         request.AddParameter("request_version", RemoteRequestVersion);
 
         var response = await client.ExecuteAsync(request, Method.GET);
+        if (response.ErrorException != null)
+        {
+            DebugConsole.AddWarning($"Connection error: Failed to verify Steam auth ticket for EOS host " +
+                $"({response.ErrorException.Message}).");
+            return AccountInfo.None;
+        }
         if (!response.IsSuccessful) { return AccountInfo.None; }
 
         try

Barotrauma/BarotraumaShared/SharedSource/Networking/ServerSettings.cs

@@ -454,7 +454,7 @@ namespace Barotrauma.Networking
             private set;
         }
 
-        [Serialize(300.0f, IsPropertySaveable.Yes)]
+        [Serialize(30.0f, IsPropertySaveable.Yes)]
         public float RespawnInterval
         {
             get;