The Home Office moved to the latest version of the National controlled Drug System (NDS) on the 12th July 2022.
The new landing page is NDS Web 2.0 (dflu.homeoffice.gov.uk).
Your existing user ID will continue to work on NDS7. The password requirements are different on NDS, however, you can use your current password the first time you log in but will be asked to change it to comply with the new requirements.
Details on this and other changes can be found in the new NDS7 guidance National Controlled Drug System update July 2022 (publishing.service.gov.uk)
If you have further questions please contact the Import and export licensing team;
Email address - firstname.lastname@example.org
Telephone number- 0300 0724654