diff --git a/ports/telnetport.js b/ports/telnetport.js
index 4018f0f..a0ba018 100644
--- a/ports/telnetport.js
+++ b/ports/telnetport.js
@@ -137,7 +137,9 @@ var TelnetPort = function(ip, options) {
     });
 
     this._client.on("timeout", function() {
-        self.openFlag = false;
+        // modbus.openFlag is left in its current state as it reflects two types of timeouts,
+        // i.e. 'false' for "TCP connection timeout" and 'true' for "Modbus response timeout"
+        // (this allows to continue Modbus request re-tries without reconnecting TCP).
         modbusSerialDebug("TelnetPort port: TimedOut");
         handleCallback(new Error("TelnetPort Connection Timed Out."));
     });
diff --git a/test/ports/tcpport.test.js b/test/ports/tcpport.test.js
index d10fe21..bc0f88b 100644
--- a/test/ports/tcpport.test.js
+++ b/test/ports/tcpport.test.js
@@ -46,7 +46,7 @@ describe("Modbus TCP port", function() {
                 });
             });
         });
-        it("should be able to be destoryed after opening", function(done) {
+        it("should be able to be destroyed after opening", function(done) {
             port.open(function() {
                 port.destroy(function() {
                     setTimeout(function() {
diff --git a/test/ports/tcpportrtubuffered.test.js b/test/ports/tcpportrtubuffered.test.js
index 8a90be0..86f5aef 100644
--- a/test/ports/tcpportrtubuffered.test.js
+++ b/test/ports/tcpportrtubuffered.test.js
@@ -49,7 +49,7 @@ describe("Modbus TCP RTU buffered port", function() {
                 });
             });
         });
-        it("should be able to be destoryed after opening", function(done) {
+        it("should be able to be destroyed after opening", function(done) {
             port.open(function() {
                 port.destroy(function() {
                     setTimeout(function() {
@@ -59,6 +59,14 @@ describe("Modbus TCP RTU buffered port", function() {
                 });
             });
         });
+        it("should not be closed on timeout", function(done) {
+            port.open(function() {
+                expect(port.isOpen).to.be.true;
+                port.emit("timeout");
+                expect(port.isOpen).to.be.true;
+                done();
+            });
+        });
     });
 
     describe("data handler", function() {
diff --git a/test/ports/telnetport.test.js b/test/ports/telnetport.test.js
index ae48fc9..14e018e 100644
--- a/test/ports/telnetport.test.js
+++ b/test/ports/telnetport.test.js
@@ -49,7 +49,7 @@ describe("Modbus Telnet port", function() {
                 });
             });
         });
-        it("should be able to be destoryed after opening", function(done) {
+        it("should be able to be destroyed after opening", function(done) {
             port.open(function() {
                 port.destroy(function() {
                     setTimeout(function() {
@@ -59,6 +59,14 @@ describe("Modbus Telnet port", function() {
                 });
             });
         });
+        it("should not be closed on timeout", function(done) {
+            port.open(function() {
+                expect(port.isOpen).to.be.true;
+                port.emit("timeout");
+                expect(port.isOpen).to.be.true;
+                done();
+            });
+        });
     });
 
     describe("data handler", function() {