Chapter 37 Troubleshooting
PMG5317-T20A User’s Guide
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5 If the problem continues, contact the vendor.
37.2 GPON Device Access and Login
I forgot the IP address for the GPON Device.
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 GPON
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 GPON Device (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 1.6 on page
21.
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 1.6 on page
21.
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 112), 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 GPON Device.
2 Check the hardware connections, and make sure the LEDs are behaving as expected. See Section
1.5 on page 19.
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).
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