diff --git a/minode/connection.py b/minode/connection.py
index c74af5d..fe57d1e 100644
--- a/minode/connection.py
+++ b/minode/connection.py
@@ -425,6 +425,8 @@ class Connection(threading.Thread):
             addr = message.Addr.from_message(m)
             logging.debug('%s:%s -> %s', self.host_print, self.port, addr)
             for a in addr.addresses:
+                if not a.host or a.port == 0:
+                    continue
                 shared.unchecked_node_pool.add((a.host, a.port))
 
         elif m.command == b'ping':
diff --git a/minode/structure.py b/minode/structure.py
index 53785b8..6634b5c 100644
--- a/minode/structure.py
+++ b/minode/structure.py
@@ -198,7 +198,7 @@ class NetAddr():
 
     def to_bytes(self):
         b = b''
-        b += struct.pack('>Q', int(time.time()))
+        b += struct.pack('>Q', int(time.time() - 5400))
         b += struct.pack('>I', self.stream)
         b += NetAddrNoPrefix(self.services, self.host, self.port).to_bytes()
         return b