Why my ADSL modem get abnormal IP on Telstra BigPond and how to solve it (TD-W8968(V1V2),TD-W8970/8980/9980/9970)？
NOTE：This article applies to TP-Link modem router users on Telstra BigPond who encounter issue that devices sometimes obtain an abnormal IP.
Here take TD-W8970 as an example.
What is the matter?
If you are using Telstra BigPond Internet service and find your devices connected to router sometimes obtain an abnormal IP as below:
IP Address: 101.182.X.X
Subnet Mask: 255.255.0.0
DNS Server: 22.214.171.124/126.96.36.199
It is caused by some changes of Telstra BigPond, which makes it two DHCP servers existing on the line, DHCP server of ISP will also offer IPs to devices connected to router, that is the IP like 101.182.X.X
How to solve it?
Log into the management interface of your modem router. If you don’t know how to do that, please click here.
Go to Network->WAN settings, find the Bridge with 8/35, and click Delete.
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