ZyXEL P-660HNU-F1 User Guide - Page 249
Login, Advanced Suggestions, ETHERNET, admin
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Chapter 26 Troubleshooting 4 Reset the device to its factory defaults, and try to access the ZyXEL Device with the default IP address. See Section 1.6 on page 25. 5 If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions. Advanced Suggestions • Try to access the ZyXEL Device using another service, such as Telnet. If you can access the ZyXEL Device, check the remote management settings and firewall rules to find out why the ZyXEL Device 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 ZyXEL Device. 1 Make sure you have entered the user name and password correctly. The default user name is admin. 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 Telnet to access the ZyXEL Device. Log out of the ZyXEL Device in the other session, or ask the person who is logged in to log out. 3 Turn the ZyXEL Device off, wait for one minute and turn it back on. 4 If this does not work, you have to reset the device to its factory defaults. See Section 26.2 on page 247. I cannot telnet to the ZyXEL Device. See the troubleshooting suggestions for I cannot see or access the Login screen in the web configurator. Ignore the suggestions about your browser. 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. ADSL Series User's Guide 249