How to recover the touch password to default.
If you forget the touch password, you can use the recovery feature to access the appliance and restore the default touch password. To ensure that security is not compromised, this feature works only when you are directly
connected to the appliance's CONSOLE port.
Caution: The PacketShaper is non-functional when using the recovery feature, and traffic will temporarily be blocked during the password recovery.
1. Connect the null-modem cable (included with your appliance) from the appliance's CONSOLE port
to the serial port on your PC or workstation.
2. Open a terminal emulation program (such as HyperTerminal).
3. Verify that you have configured the program with the following values to communicate with the appliance's CONSOLE serial port:
9600 bps, 8 data bits, 1 stop bit, no parity, hardware flow control
4. Power on the unit, if you have not already done so. If the unit was already turned on, you will need
to press Enter several times to make the connection.
5. Log in as the recovery user:
User name: recovery
Password: recovery
The recovery menu appears. show screen...
6. Type 2 to restore the default touch password.
7. Select 7 to reboot the appliance. After rebooting, the password prompt appears.
8. When prompted, enter the default touch user name (touch) and password (touch).
For more information refer packet guide
https://techdocs.broadcom.com/content/dam/broadcom/techdocs/symantec-security-software/web-and-network-security/packetshaper/11-10/generated-pdfs/PS-11-10-2018.pdf