diff --git a/internal/platform/implementation/windows/bluetooth_classic_medium.cc b/internal/platform/implementation/windows/bluetooth_classic_medium.cc
index 72902bae..fd672aae 100644
--- a/internal/platform/implementation/windows/bluetooth_classic_medium.cc
+++ b/internal/platform/implementation/windows/bluetooth_classic_medium.cc
@@ -68,6 +68,7 @@ void BluetoothClassicMedium::OnScanModeChanged(
 bool BluetoothClassicMedium::StartDiscovery(
     BluetoothClassicMedium::DiscoveryCallback discovery_callback) {
   EnterCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "StartDisovery entered critical section.";
 
   bool result = false;
   discovery_callback_ = discovery_callback;
@@ -77,12 +78,14 @@ bool BluetoothClassicMedium::StartDiscovery(
   }
 
   LeaveCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "StartDisovery left critical section.";
 
   return result;
 }
 
 bool BluetoothClassicMedium::StopDiscovery() {
   EnterCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "StopDiscovery entered critical section.";
   bool result = false;
 
   if (IsWatcherStarted()) {
@@ -90,6 +93,7 @@ bool BluetoothClassicMedium::StopDiscovery() {
   }
 
   LeaveCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "StopDiscovery left critical section.";
 
   return result;
 }
@@ -181,6 +185,8 @@ std::unique_ptr<api::BluetoothSocket> BluetoothClassicMedium::ConnectToService(
   }
 
   EnterCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "ConnectToService entered critical section.";
+
   std::unique_ptr<BluetoothSocket> rfcommSocket =
       std::make_unique<BluetoothSocket>();
 
@@ -198,11 +204,13 @@ std::unique_ptr<api::BluetoothSocket> BluetoothClassicMedium::ConnectToService(
                        << exception.what();
 
     LeaveCriticalSection(&critical_section_);
+    NEARBY_LOGS(INFO) << "ConnectToService left critical section.";
 
     return nullptr;
   }
 
   LeaveCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "ConnectToService left critical section.";
 
   return rfcommSocket;
 }
@@ -365,6 +373,7 @@ bool BluetoothClassicMedium::StopScanning() {
 winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Added(
     DeviceWatcher sender, DeviceInformation deviceInfo) {
   EnterCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "DeviceWatcher_Added entered critical section.";
   NEARBY_LOGS(INFO) << "Device added " << winrt::to_string(deviceInfo.Id());
   if (IsWatcherStarted()) {
     // Represents a Bluetooth device.
@@ -382,6 +391,7 @@ winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Added(
       // "DeviceWatcher_Added entered critical section.";
 
       LeaveCriticalSection(&critical_section_);
+      NEARBY_LOGS(INFO) << "DeviceWatcher_Added left critical section.";
 
       return winrt::fire_and_forget();
     }
@@ -404,6 +414,7 @@ winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Added(
   }
 
   LeaveCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "DeviceWatcher_Added left critical section.";
 
   return winrt::fire_and_forget();
 }
@@ -411,6 +422,8 @@ winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Added(
 winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Updated(
     DeviceWatcher sender, DeviceInformationUpdate deviceInfoUpdate) {
   EnterCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "DeviceWatcher_Updated entered critical section.";
+
   NEARBY_LOGS(INFO)
       << "Device updated "
       << discovered_devices_by_id_[deviceInfoUpdate.Id()]->GetName() << " ("
@@ -419,6 +432,7 @@ winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Updated(
   if (!IsWatcherStarted()) {
     // Spurious call, watcher has stopped or wasn't started
     LeaveCriticalSection(&critical_section_);
+    NEARBY_LOGS(INFO) << "DeviceWatcher_Updated left critical section.";
     return winrt::fire_and_forget();
   }
 
@@ -426,6 +440,7 @@ winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Updated(
 
   if (it == discovered_devices_by_id_.end()) {
     LeaveCriticalSection(&critical_section_);
+    NEARBY_LOGS(INFO) << "DeviceWatcher_Updated left critical section.";
     // Not tracking this device
     return winrt::fire_and_forget();
   }
@@ -437,6 +452,7 @@ winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Updated(
   }
 
   LeaveCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "DeviceWatcher_Updated left critical section.";
 
   return winrt::fire_and_forget();
 }
@@ -444,12 +460,14 @@ winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Updated(
 winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Removed(
     DeviceWatcher sender, DeviceInformationUpdate deviceInfo) {
   EnterCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "DeviceWatcher_Removed entered critical section.";
   NEARBY_LOGS(INFO) << "Device removed "
                     << discovered_devices_by_id_[deviceInfo.Id()]->GetName()
                     << " (" << winrt::to_string(deviceInfo.Id()) << ")";
 
   if (!IsWatcherStarted()) {
     LeaveCriticalSection(&critical_section_);
+    NEARBY_LOGS(INFO) << "DeviceWatcher_Removed left critical section.";
 
     return winrt::fire_and_forget();
   }
@@ -462,6 +480,7 @@ winrt::fire_and_forget BluetoothClassicMedium::DeviceWatcher_Removed(
   discovered_devices_by_id_.erase(deviceInfo.Id());
 
   LeaveCriticalSection(&critical_section_);
+  NEARBY_LOGS(INFO) << "DeviceWatcher_Removed left critical section.";
 
   return winrt::fire_and_forget();
 }