diff --git a/Source/Core/Core/Core.cpp b/Source/Core/Core/Core.cpp
index 08a990542f..29e3181d66 100644
--- a/Source/Core/Core/Core.cpp
+++ b/Source/Core/Core/Core.cpp
@@ -498,6 +498,9 @@ static void EmuThread(std::unique_ptr<BootParameters> boot, WindowSystemInfo wsi
     {
       Wiimote::LoadConfig();
     }
+
+    if (NetPlay::IsNetPlayRunning())
+      NetPlay::SetupWiimotes();
   }
 
   Common::ScopeGuard controller_guard{[init_controllers] {
diff --git a/Source/Core/Core/NetPlayClient.cpp b/Source/Core/Core/NetPlayClient.cpp
index 2ba5a4b57c..55d55b2543 100644
--- a/Source/Core/Core/NetPlayClient.cpp
+++ b/Source/Core/Core/NetPlayClient.cpp
@@ -52,7 +52,9 @@
 #include "Core/Movie.h"
 #include "Core/PowerPC/PowerPC.h"
 #include "Core/WiiRoot.h"
+#include "InputCommon/ControllerEmu/ControlGroup/Extension.h"
 #include "InputCommon/GCAdapter.h"
+#include "InputCommon/InputConfig.h"
 #include "UICommon/GameFile.h"
 #include "VideoCommon/OnScreenDisplay.h"
 #include "VideoCommon/VideoConfig.h"
@@ -558,11 +560,12 @@ unsigned int NetPlayClient::OnData(sf::Packet& packet)
       packet >> m_net_settings.m_OCFactor;
       packet >> m_net_settings.m_ReducePollingRate;
 
-      int tmp;
-      packet >> tmp;
-      m_net_settings.m_EXIDevice[0] = static_cast<ExpansionInterface::TEXIDevices>(tmp);
-      packet >> tmp;
-      m_net_settings.m_EXIDevice[1] = static_cast<ExpansionInterface::TEXIDevices>(tmp);
+      for (auto& device : m_net_settings.m_EXIDevice)
+      {
+        int tmp;
+        packet >> tmp;
+        device = static_cast<ExpansionInterface::TEXIDevices>(tmp);
+      }
 
       packet >> m_net_settings.m_EFBAccessEnable;
       packet >> m_net_settings.m_BBoxEnable;
@@ -611,6 +614,9 @@ unsigned int NetPlayClient::OnData(sf::Packet& packet)
       packet >> m_net_settings.m_SyncCodes;
       packet >> m_net_settings.m_SyncAllWiiSaves;
 
+      for (int& extension : m_net_settings.m_WiimoteExtension)
+        packet >> extension;
+
       m_net_settings.m_IsHosting = m_local_player->IsHost();
       m_net_settings.m_HostInputAuthority = m_host_input_authority;
     }
@@ -2173,6 +2179,23 @@ bool IsSyncingAllWiiSaves()
   return false;
 }
 
+void SetupWiimotes()
+{
+  ASSERT(IsNetPlayRunning());
+  const NetSettings& netplay_settings = netplay_client->GetNetSettings();
+  const PadMappingArray& wiimote_map = netplay_client->GetWiimoteMapping();
+  for (int i = 0; i < netplay_settings.m_WiimoteExtension.size(); i++)
+  {
+    if (wiimote_map[i] > 0)
+    {
+      static_cast<ControllerEmu::Extension*>(
+          static_cast<WiimoteEmu::Wiimote*>(Wiimote::GetConfig()->GetController(i))
+              ->GetWiimoteGroup(WiimoteEmu::WiimoteGroup::Extension))
+          ->switch_extension = netplay_settings.m_WiimoteExtension[i];
+    }
+  }
+}
+
 void NetPlay_Enable(NetPlayClient* const np)
 {
   std::lock_guard<std::mutex> lk(crit_netplay_client);
diff --git a/Source/Core/Core/NetPlayProto.h b/Source/Core/Core/NetPlayProto.h
index 2e33069930..8934094728 100644
--- a/Source/Core/Core/NetPlayProto.h
+++ b/Source/Core/Core/NetPlayProto.h
@@ -36,7 +36,7 @@ struct NetSettings
   bool m_ReducePollingRate;
   bool m_OCEnable;
   float m_OCFactor;
-  ExpansionInterface::TEXIDevices m_EXIDevice[2];
+  std::array<ExpansionInterface::TEXIDevices, 2> m_EXIDevice;
   bool m_EFBAccessEnable;
   bool m_BBoxEnable;
   bool m_ForceProgressive;
@@ -80,6 +80,7 @@ struct NetSettings
   bool m_SyncCodes;
   std::string m_SaveDataRegion;
   bool m_SyncAllWiiSaves;
+  std::array<int, 4> m_WiimoteExtension;
   bool m_IsHosting;
   bool m_HostInputAuthority;
 };
@@ -209,4 +210,5 @@ void ClearWiiSyncData();
 void SetSIPollBatching(bool state);
 void SendPowerButtonEvent();
 bool IsSyncingAllWiiSaves();
+void SetupWiimotes();
 }  // namespace NetPlay
diff --git a/Source/Core/Core/NetPlayServer.cpp b/Source/Core/Core/NetPlayServer.cpp
index e79c396319..70d6ccd189 100644
--- a/Source/Core/Core/NetPlayServer.cpp
+++ b/Source/Core/Core/NetPlayServer.cpp
@@ -42,12 +42,16 @@
 #include "Core/HW/Sram.h"
 #include "Core/HW/WiiSave.h"
 #include "Core/HW/WiiSaveStructs.h"
+#include "Core/HW/WiimoteEmu/WiimoteEmu.h"
+#include "Core/HW/WiimoteReal/WiimoteReal.h"
 #include "Core/IOS/ES/ES.h"
 #include "Core/IOS/FS/FileSystem.h"
 #include "Core/IOS/IOS.h"
 #include "Core/NetPlayClient.h"  //for NetPlayUI
 #include "DiscIO/Enums.h"
+#include "InputCommon/ControllerEmu/ControlGroup/Extension.h"
 #include "InputCommon/GCPadStatus.h"
+#include "InputCommon/InputConfig.h"
 #include "UICommon/GameFile.h"
 
 #if !defined(_WIN32)
@@ -1159,8 +1163,10 @@ bool NetPlayServer::StartGame()
   spac << m_settings.m_OCEnable;
   spac << m_settings.m_OCFactor;
   spac << m_settings.m_ReducePollingRate;
-  spac << m_settings.m_EXIDevice[0];
-  spac << m_settings.m_EXIDevice[1];
+
+  for (auto& device : m_settings.m_EXIDevice)
+    spac << device;
+
   spac << m_settings.m_EFBAccessEnable;
   spac << m_settings.m_BBoxEnable;
   spac << m_settings.m_ForceProgressive;
@@ -1206,6 +1212,16 @@ bool NetPlayServer::StartGame()
   spac << m_settings.m_SyncCodes;
   spac << m_settings.m_SyncAllWiiSaves;
 
+  for (int i = 0; i < m_settings.m_WiimoteExtension.size(); i++)
+  {
+    const int extension =
+        static_cast<ControllerEmu::Extension*>(
+            static_cast<WiimoteEmu::Wiimote*>(Wiimote::GetConfig()->GetController(i))
+                ->GetWiimoteGroup(WiimoteEmu::WiimoteGroup::Extension))
+            ->switch_extension;
+    spac << extension;
+  }
+
   SendAsyncToClients(std::move(spac));
 
   m_start_pending = false;