diff --git a/Makefile b/Makefile
index 171a83c2a3a111d039647d8b65e970dd63b0fbd2..f118d54253890335d0bd6e3cc28f822746cc9000 100644
--- a/Makefile
+++ b/Makefile
@@ -849,6 +849,7 @@ chttp2_status_conversion_test: $(BINDIR)/$(CONFIG)/chttp2_status_conversion_test
 chttp2_stream_map_test: $(BINDIR)/$(CONFIG)/chttp2_stream_map_test
 chttp2_varint_test: $(BINDIR)/$(CONFIG)/chttp2_varint_test
 compression_test: $(BINDIR)/$(CONFIG)/compression_test
+concurrent_connectivity_test: $(BINDIR)/$(CONFIG)/concurrent_connectivity_test
 dns_resolver_connectivity_test: $(BINDIR)/$(CONFIG)/dns_resolver_connectivity_test
 dns_resolver_test: $(BINDIR)/$(CONFIG)/dns_resolver_test
 dualstack_socket_test: $(BINDIR)/$(CONFIG)/dualstack_socket_test
@@ -1160,6 +1161,7 @@ buildtests_c: privatelibs_c \
   $(BINDIR)/$(CONFIG)/chttp2_stream_map_test \
   $(BINDIR)/$(CONFIG)/chttp2_varint_test \
   $(BINDIR)/$(CONFIG)/compression_test \
+  $(BINDIR)/$(CONFIG)/concurrent_connectivity_test \
   $(BINDIR)/$(CONFIG)/dns_resolver_connectivity_test \
   $(BINDIR)/$(CONFIG)/dns_resolver_test \
   $(BINDIR)/$(CONFIG)/dualstack_socket_test \
@@ -1404,6 +1406,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_varint_test || ( echo test chttp2_varint_test failed ; exit 1 )
 	$(E) "[RUN]     Testing compression_test"
 	$(Q) $(BINDIR)/$(CONFIG)/compression_test || ( echo test compression_test failed ; exit 1 )
+	$(E) "[RUN]     Testing concurrent_connectivity_test"
+	$(Q) $(BINDIR)/$(CONFIG)/concurrent_connectivity_test || ( echo test concurrent_connectivity_test failed ; exit 1 )
 	$(E) "[RUN]     Testing dns_resolver_connectivity_test"
 	$(Q) $(BINDIR)/$(CONFIG)/dns_resolver_connectivity_test || ( echo test dns_resolver_connectivity_test failed ; exit 1 )
 	$(E) "[RUN]     Testing dns_resolver_test"
@@ -6079,6 +6083,38 @@ endif
 endif
 
 
+CONCURRENT_CONNECTIVITY_TEST_SRC = \
+    test/core/surface/concurrent_connectivity_test.c \
+
+CONCURRENT_CONNECTIVITY_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CONCURRENT_CONNECTIVITY_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/concurrent_connectivity_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/concurrent_connectivity_test: $(CONCURRENT_CONNECTIVITY_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CONCURRENT_CONNECTIVITY_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/concurrent_connectivity_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/surface/concurrent_connectivity_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_concurrent_connectivity_test: $(CONCURRENT_CONNECTIVITY_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(CONCURRENT_CONNECTIVITY_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 DNS_RESOLVER_CONNECTIVITY_TEST_SRC = \
     test/core/client_config/resolvers/dns_resolver_connectivity_test.c \
 
diff --git a/build.yaml b/build.yaml
index e003dd83396d77779215382dac6c717f44e8f378..83b7714e6553ead71b2238b24125a57bf8aa1730 100644
--- a/build.yaml
+++ b/build.yaml
@@ -1057,6 +1057,16 @@ targets:
   - grpc
   - gpr_test_util
   - gpr
+- name: concurrent_connectivity_test
+  build: test
+  language: c
+  src:
+  - test/core/surface/concurrent_connectivity_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: dns_resolver_connectivity_test
   cpu_cost: 0.1
   build: test
diff --git a/test/core/surface/concurrent_connectivity_test.c b/test/core/surface/concurrent_connectivity_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..d8639f5e5103053b2ecd48e404282db0d2cdf9bf
--- /dev/null
+++ b/test/core/surface/concurrent_connectivity_test.c
@@ -0,0 +1,48 @@
+#include <stdio.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/thd.h>
+
+#define NUM_THREADS 100
+static grpc_channel* channels[NUM_THREADS];
+static grpc_completion_queue* queues[NUM_THREADS];
+
+void create_loop_destroy(void* actually_an_int) {
+  int thread_index = (int)(actually_an_int);
+  for (int i = 0; i < 10; ++i) {
+    grpc_completion_queue* cq = grpc_completion_queue_create(NULL);
+    grpc_channel* chan = grpc_insecure_channel_create("localhost", NULL, NULL);
+
+    channels[thread_index] = chan;
+    queues[thread_index] = cq;
+
+    gpr_timespec inf_future = gpr_inf_future(GPR_CLOCK_REALTIME);
+    gpr_timespec delta = gpr_time_from_millis(10, GPR_TIMESPAN);
+    for (int j = 0; j < 10; ++j) {
+      gpr_timespec later_time =
+          gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), delta);
+      grpc_connectivity_state state =
+          grpc_channel_check_connectivity_state(chan, 1);
+      grpc_channel_watch_connectivity_state(chan, state, later_time, cq, NULL);
+      grpc_completion_queue_next(cq, inf_future, NULL);
+    }
+    grpc_channel_destroy(channels[thread_index]);
+    grpc_completion_queue_destroy(queues[thread_index]);
+  }
+}
+
+int main() {
+  grpc_init();
+  gpr_thd_id threads[NUM_THREADS];
+  for (intptr_t i = 0; i < NUM_THREADS; ++i) {
+    gpr_thd_options options = gpr_thd_options_default();
+    gpr_thd_options_set_joinable(&options);
+    gpr_thd_new(&threads[i], create_loop_destroy, (void*)i, &options);
+  }
+  for (int i = 0; i < NUM_THREADS; ++i) {
+    gpr_thd_join(threads[i]);
+  }
+  grpc_shutdown();
+  return 0;
+}
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 0039b99a55edc0f0fc7f48df3c16bcf0be8a1fa8..092ed35ad971fd37e52434b9055395689283107f 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -189,6 +189,22 @@
     "third_party": false, 
     "type": "target"
   }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "concurrent_connectivity_test", 
+    "src": [
+      "test/core/surface/concurrent_connectivity_test.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
   {
     "deps": [
       "gpr", 
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 724cd64d19c73d333280090d424bb784addfa3ac..000315f2f4a53ef1753d969b46ad5b0da215bf34 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -253,6 +253,27 @@
       "windows"
     ]
   }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "gtest": false, 
+    "language": "c", 
+    "name": "concurrent_connectivity_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
   {
     "args": [], 
     "ci_platforms": [
diff --git a/vsprojects/buildtests_c.sln b/vsprojects/buildtests_c.sln
index be2c4a3bb1437621c8b5e8d44a57d1581a9f147c..413ed3e3f38edc9bb88ab30c1d5718025217fafc 100644
--- a/vsprojects/buildtests_c.sln
+++ b/vsprojects/buildtests_c.sln
@@ -251,6 +251,17 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "compression_test", "vcxproj
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "concurrent_connectivity_test", "vcxproj\test\concurrent_connectivity_test\concurrent_connectivity_test.vcxproj", "{391B366C-D916-45AA-3FE5-67363A46193B}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dns_resolver_connectivity_test", "vcxproj\test\dns_resolver_connectivity_test\dns_resolver_connectivity_test.vcxproj", "{F7B6FE68-E847-D7CA-4062-E737E542BCC3}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -1747,6 +1758,22 @@ Global
 		{5AFE7D17-A4A7-D68E-4491-CBC852F9D2A0}.Release-DLL|Win32.Build.0 = Release|Win32
 		{5AFE7D17-A4A7-D68E-4491-CBC852F9D2A0}.Release-DLL|x64.ActiveCfg = Release|x64
 		{5AFE7D17-A4A7-D68E-4491-CBC852F9D2A0}.Release-DLL|x64.Build.0 = Release|x64
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Debug|x64.ActiveCfg = Debug|x64
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Release|Win32.ActiveCfg = Release|Win32
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Release|x64.ActiveCfg = Release|x64
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Debug|Win32.Build.0 = Debug|Win32
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Debug|x64.Build.0 = Debug|x64
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Release|Win32.Build.0 = Release|Win32
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Release|x64.Build.0 = Release|x64
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Debug-DLL|x64.Build.0 = Debug|x64
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Release-DLL|Win32.Build.0 = Release|Win32
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Release-DLL|x64.ActiveCfg = Release|x64
+		{391B366C-D916-45AA-3FE5-67363A46193B}.Release-DLL|x64.Build.0 = Release|x64
 		{F7B6FE68-E847-D7CA-4062-E737E542BCC3}.Debug|Win32.ActiveCfg = Debug|Win32
 		{F7B6FE68-E847-D7CA-4062-E737E542BCC3}.Debug|x64.ActiveCfg = Debug|x64
 		{F7B6FE68-E847-D7CA-4062-E737E542BCC3}.Release|Win32.ActiveCfg = Release|Win32
diff --git a/vsprojects/vcxproj/test/concurrent_connectivity_test/concurrent_connectivity_test.vcxproj b/vsprojects/vcxproj/test/concurrent_connectivity_test/concurrent_connectivity_test.vcxproj
new file mode 100644
index 0000000000000000000000000000000000000000..6d69eae302fb041203ab1767dba11eefa31d9a07
--- /dev/null
+++ b/vsprojects/vcxproj/test/concurrent_connectivity_test/concurrent_connectivity_test.vcxproj
@@ -0,0 +1,199 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" />
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{391B366C-D916-45AA-3FE5-67363A46193B}</ProjectGuid>
+    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <TargetName>concurrent_connectivity_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <TargetName>concurrent_connectivity_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Release</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\surface\concurrent_connectivity_test.c">
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
+      <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr\gpr.vcxproj">
+      <Project>{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" />
+  </Target>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/concurrent_connectivity_test/concurrent_connectivity_test.vcxproj.filters b/vsprojects/vcxproj/test/concurrent_connectivity_test/concurrent_connectivity_test.vcxproj.filters
new file mode 100644
index 0000000000000000000000000000000000000000..a6492c775a27639ece812e8471e4ad6b30b29c7a
--- /dev/null
+++ b/vsprojects/vcxproj/test/concurrent_connectivity_test/concurrent_connectivity_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\surface\concurrent_connectivity_test.c">
+      <Filter>test\core\surface</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{1320b717-a107-004b-c517-074e6a7baf97}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{f205219c-cee2-c0e8-a922-5486f2d31026}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\surface">
+      <UniqueIdentifier>{6804b6ae-88f4-acf9-b3fc-6b12f8e28d4d}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+