ZyXEL VLC1324G User Manual download pdf (Page 32)

Chapter 3 VLC Troubleshooting

VLC1324G User’s Guide

3.3 VDSL2 Data Transmission

The VDSL2 link is up, but data cannot be transmitted.

3.4 Local Server

The computer behind a VDSL2 modem or router cannot access a local server connected to the

line card.

3.5 Data Rate

The SYNC-rate is not the same as the configured rate.

Table 11 VDSL2 Data Transmission Troubleshooting

STEPS CORRECTIVE ACTION

1 Check the line card’s port isolation settings.

If the subscriber is having problems with video or other high-bandwidth services, make

sure the line card’s VDSL2 port’s data rates are set high enough.

2 Check the VLAN configuration.

3 Ping the MSC from the computer behind the VDSL2 modem or router.

If you cannot ping, connect a VDSL2 modem to a VDSL2 port (that is known to work).

If the VDSL2 modem or router works with a different VDSL2 port, there may be a problem

with the original port. Contact the distributor.

If using a different port does not work, try a different VDSL2 modem or router with the

original port.

Table 12 Local Server Troubleshooting

STEPS CORRECTIVE ACTION

1 Refer to Section 3.3 on page 32 to make sure that the subscriber is able to transmit to the

line card.

2 Make sure the computer behind the DSL device has the correct gateway IP address

configured.

3 Check the VLAN configuration.

4 Check the cable and connections between the line card and the local server.

5 Try to access another local server.

If data can be transmitted to a different local server, the local server that could not be

accessed may have a problem.

Table 13 SYNC-rate Troubleshooting

STEPS CORRECTIVE ACTION

1 Connect the VDSL2 modem or router directly to the VDSL2 port using a different telephone

wire.

2 If the rates match, the quality of the telephone wiring that connects the subscriber to the

VDSL2 port may be limiting the speed to a certain rate.

If they do not match when a good wire is used, contact the distributor.

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ZyXEL VLC1324G User Manual Page 32