Index: minerutil/RPCProtocol.py
===================================================================
--- minerutil/RPCProtocol.py	(revision 112)
+++ minerutil/RPCProtocol.py	(working copy)
@@ -374,12 +374,18 @@
     def longPollThread(self):
         connection = None
         last_url = None
+        times = []
         while not self.disconnected:
-            sleep(1)
+            # limit to 15 in the last 15 seconds
+            times.append(reactor.seconds())
+            if len(times) > 15:
+                time_15_ago = times.pop(0)
+                sleep(max(0, min(1, time_15_ago + 15 - reactor.seconds()))) 
             url = self.longPollURL
             if url is None:
                 #inform miner that long polling is not active
                 reactor.callFromThread(self.runCallback, 'longpoll', False)
+                sleep(1)
             else:
                 reactor.callFromThread(self.runCallback, 'longpoll', True)
                 host = self.host
@@ -402,9 +408,11 @@
                     last_url = self.longPollURL
                 except NotAuthorized:
                     self.log('Long poll: Wrong username or password')
+                    sleep(1)
                 except ServerMessage as e:
                     self.log('Long poll: ' + str(e))
+                    sleep(1)
                 except (IOError, httplib.HTTPException, ValueError):
                     self.log('Long poll exception:')
                     traceback.print_exc()
-        
\ No newline at end of file
+                    sleep(1)