diff --git a/qa/rpc-tests/listtransactions.py b/qa/rpc-tests/listtransactions.py
index 51a29b48e..4e5809f4a 100755
--- a/qa/rpc-tests/listtransactions.py
+++ b/qa/rpc-tests/listtransactions.py
@@ -18,6 +18,11 @@ def txFromHex(hexstring):
 
 class ListTransactionsTest(BitcoinTestFramework):
 
+    def setup_nodes(self):
+        #This test requires mocktime
+        enable_mocktime()
+        return start_nodes(4, self.options.tmpdir)
+
     def run_test(self):
         # Simple send, 0 to 1:
         txid = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.1)
diff --git a/qa/rpc-tests/receivedby.py b/qa/rpc-tests/receivedby.py
index 15ef71a58..7d8231f5e 100755
--- a/qa/rpc-tests/receivedby.py
+++ b/qa/rpc-tests/receivedby.py
@@ -27,6 +27,11 @@ def get_sub_array_from_array(object_array, to_match):
 
 class ReceivedByTest(BitcoinTestFramework):
 
+    def setup_nodes(self):
+        #This test requires mocktime
+        enable_mocktime()
+        return start_nodes(4, self.options.tmpdir)
+
     def run_test(self):
         '''
         listreceivedbyaddress Test
diff --git a/qa/rpc-tests/test_framework/util.py b/qa/rpc-tests/test_framework/util.py
index 3d08fc7d7..50a649b01 100644
--- a/qa/rpc-tests/test_framework/util.py
+++ b/qa/rpc-tests/test_framework/util.py
@@ -26,6 +26,26 @@ from .authproxy import AuthServiceProxy, JSONRPCException
 
 COVERAGE_DIR = None
 
+#Set Mocktime default to OFF.
+#MOCKTIME is only needed for scripts that use the
+#cached version of the blockchain.  If the cached
+#version of the blockchain is used without MOCKTIME
+#then the mempools will not sync due to IBD.
+MOCKTIME = 0
+
+def enable_mocktime():
+    #For backwared compatibility of the python scripts
+    #with previous versions of the cache, set MOCKTIME 
+    #to Jan 1, 2014 + (201 * 10 * 60)
+    global MOCKTIME
+    MOCKTIME = 1388534400 + (201 * 10 * 60)
+
+def disable_mocktime():
+    global MOCKTIME
+    MOCKTIME = 0
+
+def get_mocktime():
+    return MOCKTIME
 
 def enable_coverage(dirname):
     """Maintain a log of which RPC calls are made during testing."""
@@ -168,9 +188,10 @@ def initialize_chain(test_dir):
 
         # Create a 200-block-long chain; each of the 4 nodes
         # gets 25 mature blocks and 25 immature.
-        # blocks are created with timestamps 10 minutes apart, starting
-        # at 1 Jan 2014
-        block_time = 1388534400
+        # blocks are created with timestamps 10 minutes apart
+        # starting from 2010 minutes in the past
+        enable_mocktime()
+        block_time = get_mocktime() - (201 * 10 * 60)
         for i in range(2):
             for peer in range(4):
                 for j in range(25):
@@ -183,6 +204,7 @@ def initialize_chain(test_dir):
         # Shut them down, and clean up cache directories:
         stop_nodes(rpcs)
         wait_bitcoinds()
+        disable_mocktime()
         for i in range(4):
             os.remove(log_filename("cache", i, "debug.log"))
             os.remove(log_filename("cache", i, "db.log"))
@@ -232,7 +254,7 @@ def start_node(i, dirname, extra_args=None, rpchost=None, timewait=None, binary=
     if binary is None:
         binary = os.getenv("BITCOIND", "bitcoind")
     # RPC tests still depend on free transactions
-    args = [ binary, "-datadir="+datadir, "-server", "-keypool=1", "-discover=0", "-rest", "-blockprioritysize=50000" ]
+    args = [ binary, "-datadir="+datadir, "-server", "-keypool=1", "-discover=0", "-rest", "-blockprioritysize=50000", "-mocktime="+str(get_mocktime()) ]
     if extra_args is not None: args.extend(extra_args)
     bitcoind_processes[i] = subprocess.Popen(args)
     devnull = open(os.devnull, "w")
diff --git a/src/main.cpp b/src/main.cpp
index f85ac3317..7d3bb2a3c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4845,7 +4845,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             {
                 if (fBlocksOnly)
                     LogPrint("net", "transaction (%s) inv sent in violation of protocol peer=%d\n", inv.hash.ToString(), pfrom->id);
-                else if (!fAlreadyHave && !fImporting && !fReindex)
+                else if (!fAlreadyHave && !fImporting && !fReindex && !IsInitialBlockDownload())
                     pfrom->AskFor(inv);
             }