Reset the On-Prem Analytics 2.5 password over Login User Interface
The default admin password for the System and Application interfaces is password.
This procedure is for Reset is as below :

There are two ways to contact technical support:
Online: Visit mysonicwall.com. Once logged in select Resources & Support | Support | Create Case.
By phone: please use our toll-free number at 1-888-793-2830. Please have your Sonicwall serial number available to create a new support case.
If you do not have a mysonicwall.com account create one for free!
