Hi Shengting, Do you know if you have any outbound packet filtering, either on your machine or outbound from the campus? You may have to check with your Systems and/or Networking folks to be sure mike Ticket Details =================== Ticket ID: ZEM-237169 Department: Support IDD Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.