diff --git a/lib/request/connect.py b/lib/request/connect.py
index 930928653..1447af81e 100644
--- a/lib/request/connect.py
+++ b/lib/request/connect.py
@@ -192,22 +192,22 @@ class Connect(object):
             kb.requestCounter += 1
             threadData.lastRequestUID = kb.requestCounter
 
-        url = kwargs.get("url",                     conf.url)
+        url = kwargs.get("url",                     None) or conf.url
         get = kwargs.get("get",                     None)
         post = kwargs.get("post",                   None)
         method = kwargs.get("method",               None)
         cookie = kwargs.get("cookie",               None)
-        ua = kwargs.get("ua",                       None)
-        referer = kwargs.get("referer",             None)
-        host = kwargs.get("host",                   conf.host)
+        ua = kwargs.get("ua",                       None) or conf.agent
+        referer = kwargs.get("referer",             None) or conf.referer
+        host = kwargs.get("host",                   None) or conf.host
         direct_ = kwargs.get("direct",              False)
         multipart = kwargs.get("multipart",         False)
         silent = kwargs.get("silent",               False)
         raise404 = kwargs.get("raise404",           True)
-        timeout = kwargs.get("timeout",             conf.timeout)
+        timeout = kwargs.get("timeout",             None) or conf.timeout
         auxHeaders = kwargs.get("auxHeaders",       None)
         response = kwargs.get("response",           False)
-        ignoreTimeout = kwargs.get("ignoreTimeout", kb.ignoreTimeout)
+        ignoreTimeout = kwargs.get("ignoreTimeout", False) or kb.ignoreTimeout
         refreshing = kwargs.get("refreshing",       False)
         retrying = kwargs.get("retrying",           False)
         crawling = kwargs.get("crawling",           False)