Hi @Asif4862 ,
Section below from the deployment guide mentions that the URL expires 24 hours after the SAS Logon service restarts. So if you are using the same link, you will have to regenerate the password by restarting the service and then use the new URL.
Sign In as the sasboot User
Your SAS environment is deployed with an initial administrator account that is named sasboot. The password for this account has expired by default, so you must reset the password before you can sign in. Follow these steps:
Follow the instructions on the displayed web page to reset the password.
Note: If the URL has expired, go to /etc/init.d and run the following command:
sudo ./sas-viya-saslogon-default restart
Then go to the log and obtain the new URL. The URL expires 24 hours after the SAS Logon service restarts. For security purposes, the URL that is specified in a browser or in a text editor also expires, even if the password is not reset.
After you reset the password, SAS Environment Manager automatically opens in your browser.
Click the Yes button for all of the assumable groups so that you have the permissions to perform subsequent tasks.
Thanks!