diff --git a/libraries/networking/src/udt/LossList.cpp b/libraries/networking/src/udt/LossList.cpp
index 32812be10b..90399e319d 100644
--- a/libraries/networking/src/udt/LossList.cpp
+++ b/libraries/networking/src/udt/LossList.cpp
@@ -17,7 +17,7 @@ using namespace udt;
 using namespace std;
 
 void LossList::append(SequenceNumber seq) {
-    assert(_lossList.back().second < seq);
+    assert(_lossList.empty() || _lossList.back().second < seq);
     
     if (getLength() > 0 && _lossList.back().second + 1 == seq) {
         ++_lossList.back().second;
diff --git a/libraries/networking/src/udt/SequenceNumber.h b/libraries/networking/src/udt/SequenceNumber.h
index d5b61c0a95..c77a14edf9 100644
--- a/libraries/networking/src/udt/SequenceNumber.h
+++ b/libraries/networking/src/udt/SequenceNumber.h
@@ -45,12 +45,12 @@ public:
     }
     inline SequenceNumber operator++(int) {
         SequenceNumber before = *this;
-        (*this)++;
+        ++(*this);
         return before;
     }
     inline SequenceNumber operator--(int) {
         SequenceNumber before = *this;
-        (*this)--;
+        --(*this);
         return before;
     }
     
diff --git a/libraries/networking/src/udt/Socket.cpp b/libraries/networking/src/udt/Socket.cpp
index 810eaa73e2..ba0e196669 100644
--- a/libraries/networking/src/udt/Socket.cpp
+++ b/libraries/networking/src/udt/Socket.cpp
@@ -162,12 +162,8 @@ void Socket::readPendingDatagrams() {
                 
                 if (packet->isReliable()) {
                     // if this was a reliable packet then signal the matching connection with the sequence number
-                    // assuming it exists
-                    auto it = _connectionsHash.find(senderSockAddr);
-                    
-                    if (it != _connectionsHash.end()) {
-                        it->second->processReceivedSequenceNumber(packet->getSequenceNumber());
-                    }
+                    auto connection = findOrCreateConnection(senderSockAddr);
+                    connection->processReceivedSequenceNumber(packet->getSequenceNumber());
                 }
                 
                 if (_packetHandler) {