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diff --git a/plido-tp4/aiocoap/util/__pycache__/uri.cpython-314.pyc b/plido-tp4/aiocoap/util/__pycache__/uri.cpython-314.pyc
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diff --git a/plido-tp4/coap_basic_server1.py b/plido-tp4/coap_basic_server1.py
index 14eaa7a..69bca39 100755
--- a/plido-tp4/coap_basic_server1.py
+++ b/plido-tp4/coap_basic_server1.py
@@ -24,7 +24,7 @@
 class TimeResource(resource.Resource):
 
     async def render_get(self, request):
-        await asyncio.sleep(5)
+        # await asyncio.sleep(5)
 
         payload = datetime.datetime.now().\
                 strftime("%Y-%m-%d %H:%M").encode('ascii')
@@ -35,7 +35,7 @@ async def render_get(self, request):
 logging.basicConfig(level=logging.INFO)
 logging.getLogger("coap-server").setLevel(logging.DEBUG)
 
-def main():
+async def main():
     # Resource tree creation
     with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as s:
         s.connect(("8.8.8.8", 80)) # connect outside to get local IP address
@@ -48,11 +48,13 @@ def main():
 
     root.add_resource(['time'], TimeResource())
 
-    asyncio.Task(
-        aiocoap.Context.create_server_context(root, 
-                                    bind=(ip_addr, port)))
 
-    asyncio.get_event_loop().run_forever()
+    await aiocoap.Context.create_server_context(root,bind=(ip_addr, port)) 
+
+    await asyncio.Future()  # run forever
 
 if __name__ == "__main__":
-    main()
+    try:
+        asyncio.run(main())
+    except KeyboardInterrupt:
+        print("\nServer stopped by user") #graceful exit on Ctrl+C
\ No newline at end of file
diff --git a/pycom/__pycache__/CoAP.cpython-314.pyc b/pycom/__pycache__/CoAP.cpython-314.pyc
new file mode 100644
index 0000000..22fd94e
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diff --git a/pycom/coap_empty_msg.py b/pycom/coap_empty_msg.py
index bb9a6ad..661587e 100644
--- a/pycom/coap_empty_msg.py
+++ b/pycom/coap_empty_msg.py
@@ -1,7 +1,7 @@
 import CoAP
 import socket
 
-SERVER = "192.168.1.XX" # change to your server's IP address
+SERVER = "192.168.11.109" # change to your server's IP address
 PORT   = 5683
 
 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
diff --git a/pycom/coap_get_time1.py b/pycom/coap_get_time1.py
index a519463..24a851b 100755
--- a/pycom/coap_get_time1.py
+++ b/pycom/coap_get_time1.py
@@ -1,7 +1,7 @@
 import CoAP
 import socket
 
-SERVER = "192.168.1.XX" # change to your server's IP address
+SERVER = "192.168.11.109" # change to your server's IP address
 PORT   = 5683
 
 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
diff --git a/pycom/coap_get_time2.py b/pycom/coap_get_time2.py
index cc2878b..57a8911 100755
--- a/pycom/coap_get_time2.py
+++ b/pycom/coap_get_time2.py
@@ -1,7 +1,7 @@
 import CoAP
 import socket
 
-SERVER = "192.168.1.XX" # change to your server's IP address
+SERVER = "192.168.11.109" # change to your server's IP address
 PORT   = 5683
 
 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
diff --git a/pycom/coap_get_time3.py b/pycom/coap_get_time3.py
index 4fe8905..597d2e1 100755
--- a/pycom/coap_get_time3.py
+++ b/pycom/coap_get_time3.py
@@ -1,7 +1,7 @@
 import CoAP
 import socket
 
-SERVER = "192.168.1.XX" # change to your server's IP address
+SERVER = "192.168.11.109" # change to your server's IP address
 PORT   = 5683
 
 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
diff --git a/pycom/coap_get_time4.py b/pycom/coap_get_time4.py
index 8837eb9..1ba2454 100755
--- a/pycom/coap_get_time4.py
+++ b/pycom/coap_get_time4.py
@@ -1,7 +1,7 @@
 import CoAP
 import socket
 
-SERVER = "192.168.1.XX" # change to your server's IP address
+SERVER = "192.168.11.109" # change to your server's IP address
 PORT   = 5683
 
 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
@@ -18,13 +18,4 @@
 answer = CoAP.Message(resp)
 answer.dump()
 
-s.settimeout(10)
-resp,addr = s.recvfrom(2000)
-answer = CoAP.Message(resp)
-answer.dump()
 
-mid = answer.get_mid()
-ack = CoAP.Message()
-ack.new_header(mid=mid, type=CoAP.ACK)
-ack.dump()
-s.sendto (ack.to_byte(), (SERVER, PORT))
diff --git a/pycom/coap_get_time_nonConf.py b/pycom/coap_get_time_nonConf.py
new file mode 100644
index 0000000..262c5b8
--- /dev/null
+++ b/pycom/coap_get_time_nonConf.py
@@ -0,0 +1,21 @@
+import CoAP
+import socket
+
+SERVER = "192.168.11.109" # change to your server's IP address
+PORT   = 5683
+
+s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+
+coap = CoAP.Message()
+coap.new_header(code=CoAP.GET,type=CoAP.NON ,  token=0x12345)
+coap.add_option (CoAP.Uri_path, "time")
+coap.dump()
+
+s.sendto (coap.to_byte(), (SERVER, PORT))
+
+s.settimeout(10)
+resp,addr = s.recvfrom(2000)
+answer = CoAP.Message(resp)
+answer.dump()
+
+