ZyXEL Communications VMG3925-B30C - VMG Access and Login

Chapter 40 Troubleshooting
VMG3925-B10C/B30C User’s Guide
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5 If the problem continues, contact the vendor.
40.2 VMG Access and Login
I forgot the IP address for the VMG.
1 The default LAN IP address is 192.168.1.1.
2 If you changed the IP address and have forgotten it, you might get the IP address of the VMG 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 VMG (it depends on the network), so enter this IP address in your Internet
browser.
3 If this does not work, you have to reset the device to its factory defaults. See Section 1.4.6 on page 25.
I forgot the password.
1 See the cover page for the default login names and associated passwords.
2 If those do not work, you have to reset the device to its factory defaults. See Section 1.4.6 on page 25.
I cannot see or access the Login screen in the web configurator.
1 Make sure you are using the correct IP address.
• The default IP address is 192.168.1.1.
• If you changed the IP address (Section 8.2 on page 130), use the new IP address.
• If you changed the IP address and have forgotten it, see the troubleshooting suggestions for I
forgot the IP address for the VMG.
2 Check the hardware connections, and make sure the LEDs are behaving as expected. See Section 1.4.2
on page 21.
3 Make sure your Internet browser does not block pop-up windows and has JavaScripts and Java
enabled.
4 If it is possible to log in from another interface, check the service control settings for HTTP and HTTPS
(Maintenance > Remote MGMT).
5 Reset the device to its factory defaults, and try to access the VMG with the default IP address. See
Section 1.4.6 on page 25.