ZXHN H168N User’s Manual
19
No. Problem and Troubleshooting
First check whether the ZXHN H168N is in the normal
state (Check the indicators according to this user
manual). If yes, the computer or application network may
be faulty. This is unrelated with VDSL2. If the VDSL2
MODEM is abnormal, check the status of indicators one
by one to remove the fault.
It is suggested to check the following items before
seeking help from operators:
1. The VDSL2 telephone cable connectors are proper.
2. The VDSL2 is away from the power cable and
large-power electronic devices.
3. No telephone extensions and fax machines are
connected between the VDSL2 incoming line and
splitter.
4. The splitter has been installed correctly.
5. The VDSL2 MODEM has good heat dissipation
ratio.
5
What are reasons for VDSL2 synchronization failure
(also referred as link down or link establishment
failure)?
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