ADB A2100N User Manual page 20

3、 Try to run command "ping 192.168.1.1" on command line mode. If the response returns "time out",
please check Ethernet connection and IP settings;
4、 If this modem is reachable, try to run ping with a known outer IP, e.g. the DNS server IP of ShangHai
Online: "ping 202.96.209.133".

If ping is reachable, there shall be no problems in the modem. Please see step 5;

If ping is not reachable, see step 6 and check if the configuration is correct.
5、 Please try to ping a certain outer URL, e.g. "ping www.google.com".

If ping is reachable, there shall be no problems in the network settings. Please check the settings
of the PC terminal, e.g. whether the security level is too high, or whether anti-virus firewall is
installed;

If ping is not reachable, check the DNS setting of Ethernet adapter. See 3.2.
Note 1：The precondition is that LAN settings in the modem has not been modified.
Note 2：We usually start command line mode in Windows 2000 as follows: click on the "RUN" item of
Windows Start Menu, input characters "cmd" in the input box popped up with an "Enter". The window
subsequently popped up is the command line window.
Note 3：The returned values of ping command in the following format show the standard of "reachable"
Figure 5.1
6、 If ping of the modem is reachable but ping of the outer fixed IP is unreachable, attention should be
concentrated upon device settings. Please enter the configuring interface following the instructions in
this manual.
（1） Check first the number of connections. If more than one connection exists, for troubleshooting ,
delete unused connections and remain the one connection you are using.
（2） Check the connection to see whether correct "type" is selected. It's normal to choose login type of
PPPoE. When you use PPPoE to login, the following information should be provided: VPI and
VCI, which can be queried from your ISP, user name and password.
（3） Then make sure that "using NAT" and "default gateway" have been selected with a tick. Check
whether "connect on demand" has been selected with a tick. If it is selected, the connection is
activated only when traffic to outer networks arrives. If not selected, check "keep connection",
which should be set to 0 if you demand to keep connection
Make sure that the above parameters are saved after configuration. Internet is now available since the
configuration is properly done.
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DSL Gateway/Router — User Manual
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