diff --git a/lixian.py b/lixian.py
index 0d5c81b..a34745c 100644
--- a/lixian.py
+++ b/lixian.py
@@ -313,6 +313,10 @@ def del_cookie(self, domain, k):
 		if self.has_cookie(domain, k):
 			self.cookiejar.clear(domain=domain, path="/", name=k)
 
+	def set_rand_userid(self):
+		from random import randint
+		self.cookiejar._cookies['.xunlei.com']['/']['userid'].value = '0' * randint(0, 3000) +  str(int(self.get_userid()))
+
 	def set_gdriveid(self, id):
 		self.set_cookie('.vip.xunlei.com', 'gdriveid', id)
 
@@ -679,13 +683,12 @@ def add_batch_tasks(self, urls, old_task_ids=None):
 			data['url[%d]' % i] = urllib.quote(to_utf_8(urls[i])) # fix per request #98
 		data['batch_old_taskid'] = batch_old_taskid
 		data['verify_code'] = ''
+		self.set_rand_userid()
 		response = self.urlread(url, data=data)
 
 		code = get_response_code(response, jsonp)
 		while code == -12 or code == -11:
-			verification_code = self.read_verification_code()
-			assert verification_code
-			data['verify_code'] = verification_code
+			self.set_rand_userid()
 			response = self.urlread(url, data=data)
 			code = get_response_code(response, jsonp)
 		if code == len(urls):
@@ -696,12 +699,11 @@ def add_batch_tasks(self, urls, old_task_ids=None):
 	def commit_torrent_task(self, data):
 		jsonp = 'jsonp%s' % current_timestamp()
 		commit_url = 'http://dynamic.cloud.vip.xunlei.com/interface/bt_task_commit?callback=%s' % jsonp
+		self.set_rand_userid()
 		response = self.urlread(commit_url, data=data)
 		code = get_response_code(response, jsonp)['progress']
 		while code == -12 or code == -11:
-			verification_code = self.read_verification_code()
-			assert verification_code
-			data['verify_code'] = verification_code
+			self.set_rand_userid()
 			response = self.urlread(commit_url, data=data)
 			code = get_response_code(response, jsonp)['progress']