diff --git a/MinecraftClient/Protocol/Handlers/Protocol16.cs b/MinecraftClient/Protocol/Handlers/Protocol16.cs
index 411fae2e..39695e82 100644
--- a/MinecraftClient/Protocol/Handlers/Protocol16.cs
+++ b/MinecraftClient/Protocol/Handlers/Protocol16.cs
@@ -538,7 +538,8 @@ namespace MinecraftClient.Protocol.Handlers
 
                 if (needCheckSession)
                 {
-                    if ((type == LoginType.mojang && ProtocolHandler.SessionCheck(uuid, sessionID, serverHash)) || (type == LoginType.yggdrasil && ProtocolHandler.YggdrasilSessionCheck(uuid, sessionID, serverHash)))
+                    bool notYggdrasil = type == LoginType.mojang || type == LoginType.microsoft;
+                    if ((notYggdrasil && ProtocolHandler.SessionCheck(uuid, sessionID, serverHash)) || (type == LoginType.yggdrasil && ProtocolHandler.YggdrasilSessionCheck(uuid, sessionID, serverHash)))
                     {
                         session.ServerIDhash = serverIDhash;
                         session.ServerPublicKey = serverPublicKey;
diff --git a/MinecraftClient/Protocol/Handlers/Protocol18.cs b/MinecraftClient/Protocol/Handlers/Protocol18.cs
index ba942269..37114cde 100644
--- a/MinecraftClient/Protocol/Handlers/Protocol18.cs
+++ b/MinecraftClient/Protocol/Handlers/Protocol18.cs
@@ -2619,8 +2619,8 @@ namespace MinecraftClient.Protocol.Handlers
                 if (needCheckSession)
                 {
                     string serverHash = CryptoHandler.GetServerHash(serverIDhash, serverPublicKey, secretKey);
-
-                    if ((type == LoginType.mojang && ProtocolHandler.SessionCheck(uuid, sessionID, serverHash) )|| (type == LoginType.yggdrasil && ProtocolHandler.YggdrasilSessionCheck(uuid, sessionID, serverHash)))
+                    bool notYggdrasil = type == LoginType.mojang || type == LoginType.microsoft;
+                    if ((notYggdrasil && ProtocolHandler.SessionCheck(uuid, sessionID, serverHash) )|| (type == LoginType.yggdrasil && ProtocolHandler.YggdrasilSessionCheck(uuid, sessionID, serverHash)))
                     {
                         session.ServerIDhash = serverIDhash;
                         session.ServerPublicKey = serverPublicKey;
diff --git a/MinecraftClient/Protocol/Session/SessionToken.cs b/MinecraftClient/Protocol/Session/SessionToken.cs
index 66bcb568..ff965b70 100644
--- a/MinecraftClient/Protocol/Session/SessionToken.cs
+++ b/MinecraftClient/Protocol/Session/SessionToken.cs
@@ -39,7 +39,8 @@ namespace MinecraftClient.Protocol.Session
                 return false;
             Crypto.CryptoHandler.ClientAESPrivateKey ??= Crypto.CryptoHandler.GenerateAESPrivateKey();
             string serverHash = Crypto.CryptoHandler.GetServerHash(ServerIDhash, ServerPublicKey, Crypto.CryptoHandler.ClientAESPrivateKey);
-            if (type == LoginType.mojang && ProtocolHandler.SessionCheck(PlayerID, ID, serverHash))
+            bool notYggdrasil = type == LoginType.mojang || type == LoginType.microsoft;
+            if (notYggdrasil && ProtocolHandler.SessionCheck(PlayerID, ID, serverHash))
                 return true;
             if (type == LoginType.yggdrasil && ProtocolHandler.YggdrasilSessionCheck(PlayerID, ID, serverHash))
                 return true;