diff --git a/ntcore/src/main/native/cpp/Dispatcher.cpp b/ntcore/src/main/native/cpp/Dispatcher.cpp
index f43bd15ecd..ea54fe4042 100644
--- a/ntcore/src/main/native/cpp/Dispatcher.cpp
+++ b/ntcore/src/main/native/cpp/Dispatcher.cpp
@@ -22,14 +22,15 @@ using namespace nt;
 
 void Dispatcher::StartServer(const Twine& persist_filename,
                              const char* listen_address, unsigned int port) {
+  std::string listen_address_copy(StringRef(listen_address).trim());
   DispatcherBase::StartServer(
       persist_filename,
       std::unique_ptr<wpi::NetworkAcceptor>(new wpi::TCPAcceptor(
-          static_cast<int>(port), listen_address, m_logger)));
+          static_cast<int>(port), listen_address_copy.c_str(), m_logger)));
 }
 
 void Dispatcher::SetServer(const char* server_name, unsigned int port) {
-  std::string server_name_copy(server_name);
+  std::string server_name_copy(StringRef(server_name).trim());
   SetConnector([=]() -> std::unique_ptr<wpi::NetworkStream> {
     return wpi::TCPConnector::connect(server_name_copy.c_str(),
                                       static_cast<int>(port), m_logger, 1);
@@ -40,7 +41,7 @@ void Dispatcher::SetServer(
     ArrayRef<std::pair<StringRef, unsigned int>> servers) {
   wpi::SmallVector<std::pair<std::string, int>, 16> servers_copy;
   for (const auto& server : servers)
-    servers_copy.emplace_back(std::string{server.first},
+    servers_copy.emplace_back(std::string{server.first.trim()},
                               static_cast<int>(server.second));
 
   SetConnector([=]() -> std::unique_ptr<wpi::NetworkStream> {
@@ -94,7 +95,7 @@ void Dispatcher::SetServerTeam(unsigned int team, unsigned int port) {
 }
 
 void Dispatcher::SetServerOverride(const char* server_name, unsigned int port) {
-  std::string server_name_copy(server_name);
+  std::string server_name_copy(StringRef(server_name).trim());
   SetConnectorOverride([=]() -> std::unique_ptr<wpi::NetworkStream> {
     return wpi::TCPConnector::connect(server_name_copy.c_str(),
                                       static_cast<int>(port), m_logger, 1);
diff --git a/ntcore/src/test/java/edu/wpi/first/networktables/ConnectionListenerTest.java b/ntcore/src/test/java/edu/wpi/first/networktables/ConnectionListenerTest.java
index 7035146b2b..9628a0e411 100644
--- a/ntcore/src/test/java/edu/wpi/first/networktables/ConnectionListenerTest.java
+++ b/ntcore/src/test/java/edu/wpi/first/networktables/ConnectionListenerTest.java
@@ -15,6 +15,8 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledOnOs;
 import org.junit.jupiter.api.condition.OS;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
@@ -112,16 +114,17 @@ class ConnectionListenerTest {
 
   }
 
-  @Test
+  @ParameterizedTest
   @DisabledOnOs(OS.WINDOWS)
   @SuppressWarnings("PMD.AvoidUsingHardCodedIP")
-  void testThreaded() {
-    m_serverInst.startServer("connectionlistenertest.ini", "127.0.0.1", 10000);
+  @ValueSource(strings = { "127.0.0.1", "127.0.0.1 ", " 127.0.0.1 " })
+  void testThreaded(String address) {
+    m_serverInst.startServer("connectionlistenertest.ini", address, 10000);
     List<ConnectionNotification> events = new ArrayList<>();
     final int handle = m_serverInst.addConnectionListener(events::add, false);
 
     // trigger a connect event
-    m_clientInst.startClient("127.0.0.1", 10000);
+    m_clientInst.startClient(address, 10000);
 
     // wait for client to report it's started, then wait another 0.1 sec
     try {