TP-Link TD-8840 - Manual (Page 37)

TD-8840 External ADSL2+ Router User Guide
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3) Whatever the setup of the IP address on your computer (if you close the DHCP function,
you can't obtain the IP address automatically, must specify the IP address of your
computer manually).
4) Run the winipcfg order in the windows 95/98(run the ipconfig order in the windows 2000)
to check whether setup the IP address, subnet mask, default gateway by DHCP.
5) Resume the ADSL Modem default configuration if necessary.
4. Have complete all configurations, but can’t dial through computer
1) Check the indicator of ADSL, it should be working in normally.
2) Check the accuracy of parameter of value of VPI/VCI, Encapsulation mode of AAL5 and
so on, whether you need to install the dial software, such as Winpoet, Enternet.
3) This product has the PPP dial procedure inside , so you will not need to use the dial
software if your protocol is PPPoA or PPPoE, ADSL Modem will connect automatically.
4) You can check whether your ADSL Modem succeeds in connection with PING
command.