Chapter 31 Troubleshooting
PMG5318-B20B User’s Guide
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3 Turn the GPON Device off and on.
4 If this does not work, you have to reset the device to its factory defaults. See Section 1.5 on page
11.
31.4 Internet Access
I cannot access the Internet.
1 Check the hardware connections, and make sure the LEDs are behaving as expected.
The PON LED turns red if the optical transceiver has malfunctioned or the fiber cable is not
connected or is broken or damaged enough to break the PON connection.
The PON LED turns orange if the GPON Device’s PON port is physically connected but the OLT did
not provision the GPON Device.
See Section 1.4 on page 9 for details about the other LEDs.
2 Make sure you entered the ISP account information correctly in the WAN screens. These fields are
case-sensitive, so make sure [Caps Lock] is not on. If the service provider gave you a GPON
password to use, make sure you entered it correctly (see Section 28.1 on page 122).
3 Disconnect all the cables from your device, and follow the directions in Section 1.4 on page 9 again.
4 If the problem continues, contact the ISP.
I cannot access the Internet anymore. I had access to the Internet (with the GPON Device),
but my Internet connection is not available anymore.
1 Check the hardware connections, and make sure the LEDs are behaving as expected. The PON LED
turns red if the optical transceiver has malfunctioned or the fiber cable is not connected or is broken
or damaged enough to break the PON connection. See Section 1.4 on page 9 for details about the
other LEDs.
2 Turn the GPON Device off and on.
3 If the problem continues, contact the ISP.
The Internet connection is slow or intermittent.
1 There might be a lot of traffic on the network. Look at the LEDs, and check Section 1.4 on page 9.
If the GPON Device is sending or receiving a lot of information, try closing some programs that use
the Internet, especially peer-to-peer applications.
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