Hello,
If you are experiencing issues with accessing and logging into your SDK Manager, please make sure you are installing on a supported OS and using the latest version found here:
For information on system requirements, installation steps and more, go to the SDKM user guide located here:
https://docs.nvidia.com/sdk-manager/index.html
If you continue to have issues after upgrading, please package the folder ~/.nvsdkm and send that to me (@TomNVIDIA) in a private message.
Cheers,
Tom K