ZyXEL Communications GS-3012F Series - Manual (Page 266)

Chapter 35 Troubleshooting
GS-3012/GS-3012F User’s Guide
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Problems with the Password
Table 89 Troubleshooting the Password
PROBLEM CORRECTIVE ACTION
Cannot access the
switch.
The password field is case sensitive. Make sure that you enter the correct
password using the proper casing.
The administrator username is “admin”. The default administrator password is
“1234”. The username and password are case-sensitive. Make sure that you
enter the correct password and username using the proper casing. If you have
changed the password and have now forgotten it, you will need to upload the
default configuration file. This restores all of the factory defaults including the
password.