If  you  still  have  some  problems,  please  contact  our  customer 
service 
  Technical Support   
  Toll Free: 400-6622-666 (For Mainland China Only)   
  Toll Free: 1-800-570-5892 (For USA only)   
  Tel: +86 (755) 2344 2820   
  Skype: tendasz   
  MSN: tendasz@hotmail.com   
  Email: support@tenda.com.cn   
  Headquarter Shenzhen:   
  Add: Tenda Industrial Zone,No.34-1 Shilong Road, ShiyanTown, 
Baoan District, Shenzhen, China. 518108 
  Tel:(86)755-27657180   
  Fax: (86)755-27657178   
  Email: sales@tenda.com.cn   
  Technical Support: support@tenda.com.cn