Zte ZXDSL 831C User Manual page 17

ZXDSL 831C ADSL MODEM User's Manual
Problem Troubleshooting Suggestion
address to your public IP address, make sure the IP address
specified on your PC meets the IP range specified in the NAT
rule.
Perhaps, your ADSL service provider's CO equipment is
malfunctioned.
Web pages can't be displayed. Verify that the DNS server specified on the PCs is correct for
your ISP. You can use the ping utility to test the connectivity of
your PC with your ADSL service provider's DNS server.
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