ZyXEL Communications P-873HNU-51B, User Manual

Page: 265 / 339

Chapter 33 Troubleshooting
P-873HNU(P)-51B User’s Guide
265
• Make sure you have logged out of any earlier management sessions using the same user account
even if they were through a different interface or using a different browser.
• Try to access the VDSL Router using another service, such as Telnet. If you can access the VDSL
Router, check the remote management settings and firewall rules to find out why the VDSL
Router does not respond to HTTP.
• If your computer is connected to the WAN port or is connected wirelessly, use a computer that is
connected to an ETHERNET port.\
I can see the Login screen, but I cannot log in to the VDSL Router.
1
Make sure you have entered the password correctly. The default admin password is 1234. The field
is case-sensitive, so make sure [Caps Lock] is not on.
2
You cannot log in to the web configurator while someone is using Telnet to access the VDSL Router.
Log out of the VDSL Router in the other session, or ask the person who is logged in to log out.
3
Turn the VDSL Router off and on.
4
If this does not work, you have to reset the device to its factory defaults. See Section 33.1 on page
263 .
I cannot Telnet to the VDSL Router.
1
See the troubleshooting suggestions for I cannot see or access the Login screen in the web
configurator. Ignore the suggestions about your browser.
2
Check the service control settings for Telnet. See Chapter 20 on page 217 .
I cannot use FTP to upload / download the configuration file. / I cannot use FTP to upload
new firmware.
1
See the troubleshooting suggestions for I cannot see or access the Login screen in the web
configurator. Ignore the suggestions about your browser.
2
Check the service control settings for FTP. See Chapter 20 on page 217 .
33.3 Internet Access
I cannot access the Internet.