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.