diff --git a/repeater/data_acquisition/letsmesh_handler.py b/repeater/data_acquisition/letsmesh_handler.py
index da67b9c..a49ec65 100644
--- a/repeater/data_acquisition/letsmesh_handler.py
+++ b/repeater/data_acquisition/letsmesh_handler.py
@@ -33,12 +33,6 @@ LETSMESH_BROKERS = [
         "port": 443,
         "audience": "mqtt-us-v1.letsmesh.net",
     },
-    {
-        "name": "Europe (LetsMesh v1)",
-        "host": "mqtt-eu-v1.letsmesh.net",
-        "port": 443,
-        "audience": "mqtt-eu-v1.letsmesh.net",
-    },
 ]
 
 
diff --git a/repeater/engine.py b/repeater/engine.py
index f439c47..fc1f9a1 100644
--- a/repeater/engine.py
+++ b/repeater/engine.py
@@ -184,7 +184,7 @@ class RepeaterHandler(BaseHandler):
             )
 
         # Check if this is a duplicate
-        pkt_hash = packet.calculate_packet_hash().hex()
+        pkt_hash = packet.calculate_packet_hash().hex().upper()
         is_dupe = pkt_hash in self.seen_packets and not transmitted
 
         # Set drop reason for duplicates
@@ -418,14 +418,14 @@ class RepeaterHandler(BaseHandler):
 
     def is_duplicate(self, packet: Packet) -> bool:
 
-        pkt_hash = packet.calculate_packet_hash().hex()
+        pkt_hash = packet.calculate_packet_hash().hex().upper()
         if pkt_hash in self.seen_packets:
             return True
         return False
 
     def mark_seen(self, packet: Packet):
 
-        pkt_hash = packet.calculate_packet_hash().hex()
+        pkt_hash = packet.calculate_packet_hash().hex().upper()
         self.seen_packets[pkt_hash] = time.time()
 
         if len(self.seen_packets) > self.max_cache_size:
diff --git a/repeater/main.py b/repeater/main.py
index c979518..d497c1e 100644
--- a/repeater/main.py
+++ b/repeater/main.py
@@ -194,7 +194,7 @@ class RepeaterDaemon:
                     "tx_delay_ms": 0,  
                     "transmitted": False,  
                     "is_duplicate": False,  
-                    "packet_hash": packet.calculate_packet_hash().hex()[:16],
+                    "packet_hash": packet.calculate_packet_hash().hex().upper()[:16],
                     "drop_reason": "trace_received",
                     "path_hash": path_hash,
                     "src_hash": None,  
@@ -235,7 +235,7 @@ class RepeaterDaemon:
                 self.repeater_handler and not self.repeater_handler.is_duplicate(packet)):
                 
                 if self.repeater_handler and hasattr(self.repeater_handler, 'recent_packets'):
-                    packet_hash = packet.calculate_packet_hash().hex()[:16]
+                    packet_hash = packet.calculate_packet_hash().hex().upper()[:16]
                     for record in reversed(self.repeater_handler.recent_packets):
                         if record.get("packet_hash") == packet_hash:
                             record["transmitted"] = True