diff --git a/Source/Core/Core/IOS/Network/KD/NWC24Config.cpp b/Source/Core/Core/IOS/Network/KD/NWC24Config.cpp
index 4ff427907c..aa55f78b6d 100644
--- a/Source/Core/Core/IOS/Network/KD/NWC24Config.cpp
+++ b/Source/Core/Core/IOS/Network/KD/NWC24Config.cpp
@@ -15,6 +15,7 @@
 namespace IOS::HLE::NWC24
 {
 constexpr const char CONFIG_PATH[] = "/" WII_WC24CONF_DIR "/nwc24msg.cfg";
+constexpr const char CBK_PATH[] = "/" WII_WC24CONF_DIR "/nwc24msg.cbk";
 
 NWC24Config::NWC24Config(std::shared_ptr<FS::FileSystem> fs) : m_fs{std::move(fs)}
 {
@@ -37,6 +38,15 @@ void NWC24Config::ReadConfig()
   ResetConfig();
 }
 
+void NWC24Config::WriteCBK() const
+{
+  constexpr FS::Modes public_modes{FS::Mode::ReadWrite, FS::Mode::ReadWrite, FS::Mode::ReadWrite};
+  m_fs->CreateFullPath(PID_KD, PID_KD, CBK_PATH, 0, public_modes);
+  const auto file = m_fs->CreateAndOpenFile(PID_KD, PID_KD, CBK_PATH, public_modes);
+  if (!file || !file->Write(&m_data, 1))
+    ERROR_LOG_FMT(IOS_WC24, "Failed to open or write WC24 config file");
+}
+
 void NWC24Config::WriteConfig() const
 {
   constexpr FS::Modes public_modes{FS::Mode::ReadWrite, FS::Mode::ReadWrite, FS::Mode::ReadWrite};
diff --git a/Source/Core/Core/IOS/Network/KD/NWC24Config.h b/Source/Core/Core/IOS/Network/KD/NWC24Config.h
index c5e0c3a17e..430f59d2df 100644
--- a/Source/Core/Core/IOS/Network/KD/NWC24Config.h
+++ b/Source/Core/Core/IOS/Network/KD/NWC24Config.h
@@ -46,6 +46,7 @@ public:
   explicit NWC24Config(std::shared_ptr<FS::FileSystem> fs);
 
   void ReadConfig();
+  void WriteCBK() const;
   void WriteConfig() const;
   void ResetConfig();
 
diff --git a/Source/Core/Core/IOS/Network/KD/NetKDRequest.cpp b/Source/Core/Core/IOS/Network/KD/NetKDRequest.cpp
index 8bedc0d9f0..1e8063a60d 100644
--- a/Source/Core/Core/IOS/Network/KD/NetKDRequest.cpp
+++ b/Source/Core/Core/IOS/Network/KD/NetKDRequest.cpp
@@ -397,7 +397,9 @@ std::optional<IPCReply> NetKDRequestDevice::IOCtl(const IOCtlRequest& request)
         config.SetId(user_id);
         config.IncrementIdGen();
         config.SetCreationStage(NWC24::NWC24CreationStage::Generated);
+        config.SetChecksum(config.CalculateNwc24ConfigChecksum());
         config.WriteConfig();
+        config.WriteCBK();
 
         WriteReturnValue(ret, request.buffer_out);
       }