Zyxel Device Access And Login - ZyXEL Communications P-870HN-51B - V1.0 Manual

Chapter 25 Troubleshooting
Check the hardware connections. See the Quick Start Guide.
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Inspect your cables for damage. Contact the vendor to replace any damaged
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cables.
Turn the ZyXEL Device off and on.
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If the problem continues, contact the vendor.
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25.2 ZyXEL Device Access and Login

I forgot the IP address for the ZyXEL Device.
The default IP address is 192.168.1.1.
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If you changed the IP address and have forgotten it, you might get the IP address
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of the ZyXEL Device by looking up the IP address of the default gateway for your
computer. To do this in most Windows computers, click Start > Run, enter cmd,
and then enter ipconfig. The IP address of the Default Gateway might be the IP
address of the ZyXEL Device (it depends on the network), so enter this IP address
in your Internet browser.
If this does not work, you have to reset the device to its factory defaults. See
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Section 1.6 on page
I forgot the password.
The default password is 1234.
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If this does not work, you have to reset the device to its factory defaults. See
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Section 1.6 on page
I cannot see or access the Login screen in the web configurator.
Make sure you are using the correct IP address.
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• The default IP address is 192.168.1.1.
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P-870HN-51b User's Guide