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ZyXEL Communications ES-3148 Series User Manual

Page 285

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Chapter 37 Troubleshooting

ES-3148 User’s Guide

285

7 If the problem continues, contact the vendor.

V

I can see the Login screen, but I cannot log in to the Switch.

1 Make sure you have entered the user name and password correctly. The default user

name is admin, and the default password is 1234. These fields are case-sensitive, so
make sure [Caps Lock] is not on.

2 You cannot log in to the web configurator while someone is using the Telnet or the

console port to access the Switch. Log out of the Switch in the other session, or ask the
person who is logged in to log out.

3 Disconnect and re-connect the power adaptor or cord to the Switch.
4 If this does not work, you have to reset the Switch to its factory defaults. See

Section 4.6

on page 59

.

V

I cannot Telnet to the Switch.

See the troubleshooting suggestions for

I cannot see or access the Login screen in the web

configurator.

Ignore the suggestions about your browser. In addition, consider the following

suggestions before you reset the Switch to its factory defaults.

1 You may have exceeded the maximum number of concurrent Telnet sessions. Close

other Telnet sessions, or try connecting again later.

2 Try to access the Switch using another service, such as HTTP. If you can access the

Switch, check the remote management and secure client settings to find out why the
Switch does not respond to Telnet.

V

I cannot use FTP to upload / download the configuration file. / I cannot use
FTP to upload new firmware.

See the troubleshooting suggestions for

I cannot see or access the Login screen in the web

configurator.

Ignore the suggestions about your browser. In addition, consider the following

suggestions before you reset the Switch to its factory defaults.

1 You may have exceeded the maximum number of concurrent FTP sessions. Close other

FTP sessions, or try connecting again later.

2 Try to access the Switch using another service, such as HTTP. If you can access the

Switch, check the remote management and secure client settings to find out why the
Switch does not respond to FTP.