diff --git a/ntcore/src/main/native/cpp/InstanceImpl.cpp b/ntcore/src/main/native/cpp/InstanceImpl.cpp
index bbeff6ff77..3fef3563bd 100644
--- a/ntcore/src/main/native/cpp/InstanceImpl.cpp
+++ b/ntcore/src/main/native/cpp/InstanceImpl.cpp
@@ -174,3 +174,15 @@ std::shared_ptr<INetworkClient> InstanceImpl::GetClient() {
   std::scoped_lock lock{m_mutex};
   return m_networkClient;
 }
+
+void InstanceImpl::Reset() {
+  std::scoped_lock lock{m_mutex};
+  m_networkServer.reset();
+  m_networkClient.reset();
+  m_servers.clear();
+  networkMode = NT_NET_MODE_NONE;
+
+  listenerStorage.Reset();
+  // connectionList should have been cleared by destroying networkClient/server
+  localStorage.Reset();
+}
diff --git a/ntcore/src/main/native/cpp/InstanceImpl.h b/ntcore/src/main/native/cpp/InstanceImpl.h
index 4b916690a8..6d250c54fe 100644
--- a/ntcore/src/main/native/cpp/InstanceImpl.h
+++ b/ntcore/src/main/native/cpp/InstanceImpl.h
@@ -56,6 +56,8 @@ class InstanceImpl {
   std::shared_ptr<NetworkServer> GetServer();
   std::shared_ptr<INetworkClient> GetClient();
 
+  void Reset();
+
   ListenerStorage listenerStorage;
   LoggerImpl logger_impl;
   wpi::Logger logger;
diff --git a/ntcore/src/main/native/cpp/ListenerStorage.cpp b/ntcore/src/main/native/cpp/ListenerStorage.cpp
index b19e871ba5..301934b36e 100644
--- a/ntcore/src/main/native/cpp/ListenerStorage.cpp
+++ b/ntcore/src/main/native/cpp/ListenerStorage.cpp
@@ -320,6 +320,19 @@ bool ListenerStorage::WaitForListenerQueue(double timeout) {
   return wpi::WaitForObject(h, timeout, &timedOut);
 }
 
+void ListenerStorage::Reset() {
+  std::scoped_lock lock{m_mutex};
+  m_pollers.clear();
+  m_listeners.clear();
+  m_connListeners.clear();
+  m_topicListeners.clear();
+  m_valueListeners.clear();
+  m_logListeners.clear();
+  if (m_thread) {
+    m_thread.Stop();
+  }
+}
+
 std::vector<std::pair<NT_Listener, unsigned int>>
 ListenerStorage::DoRemoveListeners(std::span<const NT_Listener> handles) {
   std::vector<std::pair<NT_Listener, unsigned int>> rv;
diff --git a/ntcore/src/main/native/cpp/ListenerStorage.h b/ntcore/src/main/native/cpp/ListenerStorage.h
index 654d7fd5fe..bbea074756 100644
--- a/ntcore/src/main/native/cpp/ListenerStorage.h
+++ b/ntcore/src/main/native/cpp/ListenerStorage.h
@@ -59,6 +59,8 @@ class ListenerStorage final : public IListenerStorage {
 
   bool WaitForListenerQueue(double timeout);
 
+  void Reset();
+
  private:
   // these assume the mutex is already held
   NT_Listener DoAddListener(NT_ListenerPoller pollerHandle);
diff --git a/ntcore/src/main/native/cpp/LocalStorage.cpp b/ntcore/src/main/native/cpp/LocalStorage.cpp
index 2145011492..04b9398c1e 100644
--- a/ntcore/src/main/native/cpp/LocalStorage.cpp
+++ b/ntcore/src/main/native/cpp/LocalStorage.cpp
@@ -2187,3 +2187,9 @@ void LocalStorage::StopDataLog(NT_DataLogger logger) {
     }
   }
 }
+
+void LocalStorage::Reset() {
+  std::scoped_lock lock{m_mutex};
+  m_impl = std::make_unique<Impl>(m_impl->m_inst, m_impl->m_listenerStorage,
+                                  m_impl->m_logger);
+}
diff --git a/ntcore/src/main/native/cpp/LocalStorage.h b/ntcore/src/main/native/cpp/LocalStorage.h
index e2b770a1fe..8205da3f01 100644
--- a/ntcore/src/main/native/cpp/LocalStorage.h
+++ b/ntcore/src/main/native/cpp/LocalStorage.h
@@ -209,6 +209,8 @@ class LocalStorage final : public net::ILocalStorage {
                              std::string_view logPrefix);
   void StopDataLog(NT_DataLogger logger);
 
+  void Reset();
+
  private:
   class Impl;
   std::unique_ptr<Impl> m_impl;
diff --git a/ntcore/src/main/native/cpp/ntcore_cpp.cpp b/ntcore/src/main/native/cpp/ntcore_cpp.cpp
index 512ceeccc4..fd8d323844 100644
--- a/ntcore/src/main/native/cpp/ntcore_cpp.cpp
+++ b/ntcore/src/main/native/cpp/ntcore_cpp.cpp
@@ -45,6 +45,12 @@ NT_Inst CreateInstance() {
   return Handle{InstanceImpl::Alloc(), 0, Handle::kInstance};
 }
 
+void ResetInstance(NT_Inst inst) {
+  if (auto ii = InstanceImpl::GetTyped(inst, Handle::kInstance)) {
+    ii->Reset();
+  }
+}
+
 void DestroyInstance(NT_Inst inst) {
   int i = Handle{inst}.GetTypedInst(Handle::kInstance);
   if (i < 0) {
diff --git a/ntcore/src/main/native/include/ntcore_cpp.h b/ntcore/src/main/native/include/ntcore_cpp.h
index 1dd33aea3b..1b1e4717cf 100644
--- a/ntcore/src/main/native/include/ntcore_cpp.h
+++ b/ntcore/src/main/native/include/ntcore_cpp.h
@@ -348,6 +348,13 @@ NT_Inst GetDefaultInstance();
  */
 NT_Inst CreateInstance();
 
+/**
+ * Reset the internals of an instance. Every handle previously associated
+ * with this instance will no longer be valid, except for the instance
+ * handle.
+ */
+void ResetInstance(NT_Inst inst);
+
 /**
  * Destroy an instance.
  * The default instance cannot be destroyed.
diff --git a/ntcore/src/test/native/cpp/NetworkTableTest.cpp b/ntcore/src/test/native/cpp/NetworkTableTest.cpp
index 73c4786238..aa28afd664 100644
--- a/ntcore/src/test/native/cpp/NetworkTableTest.cpp
+++ b/ntcore/src/test/native/cpp/NetworkTableTest.cpp
@@ -89,3 +89,15 @@ TEST_F(NetworkTableTest, EmptyOrNoSlash) {
   ASSERT_TRUE(inst.GetEntry("/testkey").Exists());
   nt::NetworkTableInstance::Destroy(inst);
 }
+
+TEST_F(NetworkTableTest, ResetInstance) {
+  auto inst = nt::NetworkTableInstance::Create();
+  auto nt = inst.GetTable("containskey");
+  ASSERT_FALSE(nt->ContainsKey("testkey"));
+  nt->PutNumber("testkey", 5);
+  ASSERT_TRUE(nt->ContainsKey("testkey"));
+  ASSERT_TRUE(inst.GetEntry("/containskey/testkey").Exists());
+  nt::ResetInstance(inst.GetHandle());
+  ASSERT_FALSE(nt->ContainsKey("testkey"));
+  nt::NetworkTableInstance::Destroy(inst);
+}