Your timeouts are very large values (12 hours!!!) This is making the web service stall and keep waiting for a very long time (because you asked it to wait by setting timeouts to 12 hrs) You need to change these timeouts to few minutes(1 minute should be enough) at max as timeouts in hours does not make any sense. Read more about timeouts in below link to get a better understanding of them: https://msdn.microsoft.com/en-us/library/hh924831(v=vs.110).aspx[^]