diff --git a/connections/implementation/mediums/ble_test.cc b/connections/implementation/mediums/ble_test.cc
index ea60ad18..1116d5db 100644
--- a/connections/implementation/mediums/ble_test.cc
+++ b/connections/implementation/mediums/ble_test.cc
@@ -20,10 +20,10 @@
 #include "protobuf-matchers/protocol-buffer-matchers.h"
 #include "gtest/gtest.h"
 #include "connections/implementation/mediums/bluetooth_radio.h"
-#include "internal/platform/medium_environment.h"
 #include "internal/platform/ble.h"
 #include "internal/platform/count_down_latch.h"
 #include "internal/platform/logging.h"
+#include "internal/platform/medium_environment.h"
 
 namespace location {
 namespace nearby {
@@ -50,8 +50,6 @@ class BleTest : public ::testing::TestWithParam<FeatureFlags> {
  protected:
   using DiscoveredPeripheralCallback = BleMedium::DiscoveredPeripheralCallback;
 
-  BleTest() { env_.Stop(); }
-
   MediumEnvironment& env_{MediumEnvironment::Instance()};
 };
 
diff --git a/connections/implementation/mediums/ble_v2_test.cc b/connections/implementation/mediums/ble_v2_test.cc
index c320ac3a..f9d8195a 100644
--- a/connections/implementation/mediums/ble_v2_test.cc
+++ b/connections/implementation/mediums/ble_v2_test.cc
@@ -47,8 +47,6 @@ constexpr absl::string_view kAdvertisementString = "\x0a\x0b\x0c\x0d";
 
 class BleV2Test : public testing::TestWithParam<FeatureFlags> {
  protected:
-  BleV2Test() { env_.Stop(); }
-
   MediumEnvironment& env_{MediumEnvironment::Instance()};
 };
 
diff --git a/connections/implementation/mediums/bluetooth_classic_test.cc b/connections/implementation/mediums/bluetooth_classic_test.cc
index 56018bb8..e898cf39 100644
--- a/connections/implementation/mediums/bluetooth_classic_test.cc
+++ b/connections/implementation/mediums/bluetooth_classic_test.cc
@@ -21,10 +21,10 @@
 #include "gtest/gtest.h"
 #include "absl/time/time.h"
 #include "connections/implementation/mediums/bluetooth_radio.h"
-#include "internal/platform/medium_environment.h"
 #include "internal/platform/bluetooth_classic.h"
 #include "internal/platform/count_down_latch.h"
 #include "internal/platform/logging.h"
+#include "internal/platform/medium_environment.h"
 #include "internal/platform/system_clock.h"
 
 namespace location {
@@ -51,7 +51,6 @@ class BluetoothClassicTest : public ::testing::TestWithParam<FeatureFlags> {
 
   BluetoothClassicTest() {
     env_.Start();
-    env_.Reset();
     radio_a_ = std::make_unique<BluetoothRadio>();
     radio_b_ = std::make_unique<BluetoothRadio>();
     bt_a_ = std::make_unique<BluetoothClassic>(*radio_a_);
@@ -72,7 +71,6 @@ class BluetoothClassicTest : public ::testing::TestWithParam<FeatureFlags> {
     env_.Sync(false);
     radio_a_.reset();
     radio_b_.reset();
-    env_.Reset();
     env_.Stop();
   }
 
diff --git a/connections/implementation/mediums/webrtc/connection_flow_test.cc b/connections/implementation/mediums/webrtc/connection_flow_test.cc
index 340be228..5421abf4 100644
--- a/connections/implementation/mediums/webrtc/connection_flow_test.cc
+++ b/connections/implementation/mediums/webrtc/connection_flow_test.cc
@@ -24,8 +24,8 @@
 #include "connections/implementation/mediums/webrtc/session_description_wrapper.h"
 #include "connections/implementation/mediums/webrtc_socket.h"
 #include "internal/platform/byte_array.h"
-#include "internal/platform/medium_environment.h"
 #include "internal/platform/count_down_latch.h"
+#include "internal/platform/medium_environment.h"
 #include "internal/platform/webrtc.h"
 #include "webrtc/api/data_channel_interface.h"
 #include "webrtc/api/jsep.h"
@@ -41,9 +41,9 @@ namespace {
 class ConnectionFlowTest : public ::testing::Test {
  protected:
   ConnectionFlowTest() {
-    MediumEnvironment::Instance().Stop();
     MediumEnvironment::Instance().Start({.webrtc_enabled = true});
   }
+  ~ConnectionFlowTest() override { MediumEnvironment::Instance().Stop(); }
 };
 
 std::unique_ptr<webrtc::IceCandidateInterface> CopyCandidate(
diff --git a/connections/implementation/mediums/webrtc_test.cc b/connections/implementation/mediums/webrtc_test.cc
index dc919cee..6534e59d 100644
--- a/connections/implementation/mediums/webrtc_test.cc
+++ b/connections/implementation/mediums/webrtc_test.cc
@@ -47,8 +47,6 @@ class WebRtcTest : public ::testing::TestWithParam<FeatureFlags> {
   using MockAcceptedCallback = testing::MockFunction<void(
       const std::string& service_id, WebRtcSocketWrapper socket)>;
 
-  WebRtcTest() { env_.Stop(); }
-
   MediumEnvironment& env_{MediumEnvironment::Instance()};
 };
 
diff --git a/connections/implementation/mediums/wifi_lan_test.cc b/connections/implementation/mediums/wifi_lan_test.cc
index 883bad98..310f57fc 100644
--- a/connections/implementation/mediums/wifi_lan_test.cc
+++ b/connections/implementation/mediums/wifi_lan_test.cc
@@ -20,10 +20,10 @@
 #include "protobuf-matchers/protocol-buffer-matchers.h"
 #include "gtest/gtest.h"
 #include "absl/strings/string_view.h"
-#include "internal/platform/medium_environment.h"
-#include "internal/platform/nsd_service_info.h"
 #include "internal/platform/count_down_latch.h"
 #include "internal/platform/logging.h"
+#include "internal/platform/medium_environment.h"
+#include "internal/platform/nsd_service_info.h"
 #include "internal/platform/wifi_lan.h"
 
 namespace location {
@@ -52,8 +52,6 @@ class WifiLanTest : public ::testing::TestWithParam<FeatureFlags> {
  protected:
   using DiscoveredServiceCallback = WifiLanMedium::DiscoveredServiceCallback;
 
-  WifiLanTest() { env_.Stop(); }
-
   MediumEnvironment& env_{MediumEnvironment::Instance()};
 };
 
diff --git a/connections/implementation/offline_service_controller_test.cc b/connections/implementation/offline_service_controller_test.cc
index 23d48310..6d49ec21 100644
--- a/connections/implementation/offline_service_controller_test.cc
+++ b/connections/implementation/offline_service_controller_test.cc
@@ -20,10 +20,10 @@
 #include "protobuf-matchers/protocol-buffer-matchers.h"
 #include "gtest/gtest.h"
 #include "connections/implementation/offline_simulation_user.h"
-#include "internal/platform/medium_environment.h"
-#include "internal/platform/output_stream.h"
 #include "internal/platform/count_down_latch.h"
 #include "internal/platform/logging.h"
+#include "internal/platform/medium_environment.h"
+#include "internal/platform/output_stream.h"
 #include "internal/platform/pipe.h"
 #include "internal/platform/system_clock.h"
 
@@ -75,8 +75,6 @@ constexpr BooleanMediumSelector kTestCases[] = {
 class OfflineServiceControllerTest
     : public ::testing::TestWithParam<BooleanMediumSelector> {
  protected:
-  OfflineServiceControllerTest() { env_.Stop(); }
-
   bool SetupConnection(OfflineSimulationUser& user_a,
                        OfflineSimulationUser& user_b) {
     user_a.StartAdvertising(std::string(kServiceId), &connect_latch_);
diff --git a/connections/implementation/p2p_cluster_pcp_handler_test.cc b/connections/implementation/p2p_cluster_pcp_handler_test.cc
index b04601e3..d278e8a5 100644
--- a/connections/implementation/p2p_cluster_pcp_handler_test.cc
+++ b/connections/implementation/p2p_cluster_pcp_handler_test.cc
@@ -68,7 +68,6 @@ class P2pClusterPcpHandlerTest
  protected:
   void SetUp() override {
     NEARBY_LOG(INFO, "SetUp: begin");
-    env_.Stop();
     FeatureFlags::GetMutableFlagsForTesting().support_ble_v2 =
         std::get<1>(GetParam());
     if (advertising_options_.allowed.ble) {
diff --git a/connections/implementation/payload_manager_test.cc b/connections/implementation/payload_manager_test.cc
index 6b5df1d4..8d7c52ec 100644
--- a/connections/implementation/payload_manager_test.cc
+++ b/connections/implementation/payload_manager_test.cc
@@ -100,8 +100,6 @@ class PayloadSimulationUser : public SimulationUser {
 class PayloadManagerTest
     : public ::testing::TestWithParam<BooleanMediumSelector> {
  protected:
-  PayloadManagerTest() { env_.Stop(); }
-
   bool SetupConnection(PayloadSimulationUser& user_a,
                        PayloadSimulationUser& user_b) {
     user_a.StartAdvertising(std::string(kServiceId), &connection_latch_);
diff --git a/connections/implementation/pcp_manager_test.cc b/connections/implementation/pcp_manager_test.cc
index 1e271a94..89a1854d 100644
--- a/connections/implementation/pcp_manager_test.cc
+++ b/connections/implementation/pcp_manager_test.cc
@@ -23,8 +23,8 @@
 #include "absl/time/time.h"
 #include "connections/implementation/endpoint_channel_manager.h"
 #include "connections/implementation/simulation_user.h"
-#include "internal/platform/medium_environment.h"
 #include "internal/platform/count_down_latch.h"
+#include "internal/platform/medium_environment.h"
 
 namespace location {
 namespace nearby {
@@ -67,8 +67,6 @@ constexpr BooleanMediumSelector kTestCases[] = {
 
 class PcpManagerTest : public ::testing::TestWithParam<BooleanMediumSelector> {
  protected:
-  PcpManagerTest() { env_.Stop(); }
-
   MediumEnvironment& env_{MediumEnvironment::Instance()};
 };
 
diff --git a/connections/implementation/wifi_hotspot_test.cc b/connections/implementation/wifi_hotspot_test.cc
index 1ca3ba74..34ce443d 100644
--- a/connections/implementation/wifi_hotspot_test.cc
+++ b/connections/implementation/wifi_hotspot_test.cc
@@ -29,10 +29,7 @@ constexpr absl::Duration kWaitDuration = absl::Milliseconds(1000);
 
 class WifiHotspotTest : public testing::Test {
  protected:
-  WifiHotspotTest() {
-    env_.Stop();
-    env_.Start();
-  }
+  WifiHotspotTest() { env_.Start(); }
   ~WifiHotspotTest() override { env_.Stop(); }
 
   MediumEnvironment& env_{MediumEnvironment::Instance()};
diff --git a/internal/platform/ble_test.cc b/internal/platform/ble_test.cc
index abe4ca63..57b3300f 100644
--- a/internal/platform/ble_test.cc
+++ b/internal/platform/ble_test.cc
@@ -19,9 +19,9 @@
 #include "gmock/gmock.h"
 #include "protobuf-matchers/protocol-buffer-matchers.h"
 #include "gtest/gtest.h"
-#include "internal/platform/medium_environment.h"
 #include "internal/platform/count_down_latch.h"
 #include "internal/platform/logging.h"
+#include "internal/platform/medium_environment.h"
 
 namespace location {
 namespace nearby {
@@ -48,8 +48,6 @@ class BleMediumTest : public ::testing::TestWithParam<FeatureFlags> {
   using DiscoveredPeripheralCallback = BleMedium::DiscoveredPeripheralCallback;
   using AcceptedConnectionCallback = BleMedium::AcceptedConnectionCallback;
 
-  BleMediumTest() { env_.Stop(); }
-
   MediumEnvironment& env_{MediumEnvironment::Instance()};
 };
 
diff --git a/internal/platform/ble_v2_test.cc b/internal/platform/ble_v2_test.cc
index 9ba7e432..70ad2292 100644
--- a/internal/platform/ble_v2_test.cc
+++ b/internal/platform/ble_v2_test.cc
@@ -69,8 +69,6 @@ class BlePeripheralStub : public api::ble_v2::BlePeripheral {
 
 class BleV2MediumTest : public ::testing::TestWithParam<FeatureFlags> {
  protected:
-  BleV2MediumTest() { env_.Stop(); }
-
   MediumEnvironment& env_{MediumEnvironment::Instance()};
 };
 
diff --git a/internal/platform/bluetooth_classic_test.cc b/internal/platform/bluetooth_classic_test.cc
index dce7e8f4..7012069a 100644
--- a/internal/platform/bluetooth_classic_test.cc
+++ b/internal/platform/bluetooth_classic_test.cc
@@ -20,10 +20,10 @@
 #include "protobuf-matchers/protocol-buffer-matchers.h"
 #include "gtest/gtest.h"
 #include "absl/time/time.h"
-#include "internal/platform/medium_environment.h"
 #include "internal/platform/bluetooth_adapter.h"
 #include "internal/platform/count_down_latch.h"
 #include "internal/platform/logging.h"
+#include "internal/platform/medium_environment.h"
 #include "internal/platform/single_thread_executor.h"
 
 namespace location {
@@ -47,7 +47,6 @@ class BluetoothClassicMediumTest
   using DiscoveryCallback = BluetoothClassicMedium::DiscoveryCallback;
   BluetoothClassicMediumTest() {
     env_.Start();
-    env_.Reset();
     adapter_a_ = std::make_unique<BluetoothAdapter>();
     adapter_b_ = std::make_unique<BluetoothAdapter>();
     bt_a_ = std::make_unique<BluetoothClassicMedium>(*adapter_a_);
@@ -67,7 +66,6 @@ class BluetoothClassicMediumTest
     env_.Sync(false);
     adapter_a_.reset();
     adapter_b_.reset();
-    env_.Reset();
     env_.Stop();
   }
 
diff --git a/internal/platform/medium_environment.h b/internal/platform/medium_environment.h
index 81796656..172f6d5d 100644
--- a/internal/platform/medium_environment.h
+++ b/internal/platform/medium_environment.h
@@ -436,7 +436,7 @@ class MediumEnvironment {
 
   void RunOnMediumEnvironmentThread(std::function<void()> runnable);
 
-  std::atomic_bool enabled_ = true;
+  std::atomic_bool enabled_ = false;
   std::atomic_int job_count_ = 0;
   std::atomic_bool enable_notifications_ = false;
   SingleThreadExecutor executor_;
diff --git a/internal/platform/wifi_direct_test.cc b/internal/platform/wifi_direct_test.cc
index b0e8ca51..4f67675b 100644
--- a/internal/platform/wifi_direct_test.cc
+++ b/internal/platform/wifi_direct_test.cc
@@ -48,10 +48,7 @@ constexpr absl::Duration kWaitDuration = absl::Milliseconds(100);
 
 class WifiDirectMediumTest : public testing::TestWithParam<FeatureFlags> {
  protected:
-  WifiDirectMediumTest() {
-    env_.Stop();
-    env_.Start();
-  }
+  WifiDirectMediumTest() { env_.Start(); }
   ~WifiDirectMediumTest() override {
     absl::SleepFor(kWaitDuration);
     EXPECT_TRUE(env_.IsWifiDirectMediumsEmpty());
diff --git a/internal/platform/wifi_lan_test.cc b/internal/platform/wifi_lan_test.cc
index 74df9844..aadfa957 100644
--- a/internal/platform/wifi_lan_test.cc
+++ b/internal/platform/wifi_lan_test.cc
@@ -50,8 +50,6 @@ class WifiLanMediumTest : public ::testing::TestWithParam<FeatureFlags> {
  protected:
   using DiscoveredServiceCallback = WifiLanMedium::DiscoveredServiceCallback;
 
-  WifiLanMediumTest() { env_.Stop(); }
-
   MediumEnvironment& env_{MediumEnvironment::Instance()};
 };
 
@@ -377,8 +375,7 @@ TEST_F(WifiLanMediumTest, CanDiscoverMultipleAdvertisementsOnSameService) {
 
   NsdServiceInfo nsd_service_info_1;
   nsd_service_info_1.SetServiceName("service1");
-  nsd_service_info_1.SetTxtRecord(std::string(kEndpointInfoKey),
-                                "endpoint1");
+  nsd_service_info_1.SetTxtRecord(std::string(kEndpointInfoKey), "endpoint1");
   nsd_service_info_1.SetServiceType(service_type);
 
   // Setup second advertising device.
@@ -388,8 +385,7 @@ TEST_F(WifiLanMediumTest, CanDiscoverMultipleAdvertisementsOnSameService) {
 
   NsdServiceInfo nsd_service_info_2;
   nsd_service_info_2.SetServiceName("service2");
-  nsd_service_info_2.SetTxtRecord(std::string(kEndpointInfoKey),
-                                "endpoint2");
+  nsd_service_info_2.SetTxtRecord(std::string(kEndpointInfoKey), "endpoint2");
   nsd_service_info_2.SetServiceType(service_type);
 
   EXPECT_TRUE(wifi_lan_advertising_1.StartAdvertising(nsd_service_info_1));
@@ -399,7 +395,6 @@ TEST_F(WifiLanMediumTest, CanDiscoverMultipleAdvertisementsOnSameService) {
   EXPECT_TRUE(wifi_lan_advertising_2.StopAdvertising(nsd_service_info_2));
   EXPECT_TRUE(lost_latch.Await(kWaitDuration).result());
 
-
   // Stop to descovery
   EXPECT_TRUE(wifi_lan_discovery.StopDiscovery(service_type));
   env_.Stop();
diff --git a/presence/implementation/mediums/ble_test.cc b/presence/implementation/mediums/ble_test.cc
index 208cae56..6fa3ec0c 100644
--- a/presence/implementation/mediums/ble_test.cc
+++ b/presence/implementation/mediums/ble_test.cc
@@ -87,7 +87,6 @@ class BleTest : public testing::TestWithParam<FeatureFlags> {
   };
 
  protected:
-  BleTest() { env_.Stop(); }
   absl::optional<BleV2MediumStatus> GetBleStatus(const Ble& ble) {
     return env_.GetBleV2MediumStatus(*ble.GetImpl());
   }
diff --git a/presence/presence_client_test.cc b/presence/presence_client_test.cc
index 511d656e..c94ac48b 100644
--- a/presence/presence_client_test.cc
+++ b/presence/presence_client_test.cc
@@ -26,7 +26,6 @@ namespace {
 
 class PresenceClientTest : public testing::Test {
  protected:
-  PresenceClientTest() { env_.Stop(); }
   location::nearby::MediumEnvironment& env_{
       location::nearby::MediumEnvironment::Instance()};
 };
diff --git a/presence/presence_service_test.cc b/presence/presence_service_test.cc
index d239d7eb..0b6e213a 100644
--- a/presence/presence_service_test.cc
+++ b/presence/presence_service_test.cc
@@ -25,7 +25,6 @@ namespace {
 
 class PresenceServiceTest : public testing::Test {
  protected:
-  PresenceServiceTest() { env_.Stop(); }
   location::nearby::MediumEnvironment& env_{
       location::nearby::MediumEnvironment::Instance()};
 };