is under maintenance now.
We’re sorry for all the inconvenience caused to you.  
TPCAST Software Support:  
If you need any customer service, please feel free to email customer service via the following email address.
United States:
Installation Files for your TPCAST Wireless Adaptor:  
Wireless Connection Assistant and User Guide, the download link is as below:
TPCAST Wireless Adaptor for HTC Vive: id=1BOvkkdsDFbfxdv3RP_3NlDoz1YsX8fnY
TPCAST Wireless Adaptor for Oculus Rift: id=1lvPXuQ-7E3PwvAClibw7VMimKkxD4nP3
Click here to visit TPCAST China.