The Office portal of DAS is available via WIPO web site at: https://www3.wipo.int/dasofficeportal.
To use the WIPO DAS Office portal, you should first login with your WIPO account username and password as follows. 
Depending on some web browsers or available digital certificates that are installed on your workstation, you may be asked to select the WIPO digital certificate that is associated with your WIPO account to confirm your authentication.
A TEST version of the DAS Office Portal, allows you to try it out before you use it for real. The TEST portal is available at https://das.ipobs.acc.web1.wipo.int/offices
Before accessing it, you need to create a TEST account as indicated here: d.1.2.- Creating a WIPO account for testing and training
- d.1.- Creating a WIPO account
- d.2.- Browsers supported by DAS Office Portal
- d.3.- Logging in
- d.4.- Office Portal User Interface