Hello! I'm new in the forum. I started working with a client, where he has "Sophos Firewall" virtualized on VmWare EXSi 6.7 (Firmware: SFOS 19.0.1 MR-1-Build365).
The previous infrastructure technician left de company, and wrote in .txt a username (admin) and password, but it only works for me to enter "by console"

Main Menu:

1. Network Configuration
2. System Configuration
3. Route Configuration
4. Device Console
5. Device Management
6. VPN Management
7. Shutdown/Reboot Device
0. Exit

If I enter by IP or through IP:8090/httpclient.html and try to use those credentials, it gives me a login error. Is it possible that the admin user only works to access the console and not the web? Can I load a new user from the console? o Will I be able to see a list of users per console and modify the credentials? 
The idea would be to not have to reset the settings to the factory.
Greetings and thank you very much for your time. 

Sorry for my English, I speak in Spanish.