Having just completed this and not seeing a guide for it, here's what I did:

 

Plug your router in properly- there are guides elsewhere to do that. It should be pretty obvious. 

 

In a browser go to routerlogin.net OR 192.168.1.1 - or whatever ipconfig in a cmd prompt tells you is your default gateway

 

You should see this: By default enter Username: Admin Password: password - (or whatever you've changed it to)

 

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Click the advanced Tab.

 

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Click setup, then internet setup.

 

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Copy all the settings in the picture 

 

PPP Protocol: PPPoE
VLAN Tagging: Disable/No/Off
PPP Username/Password: anything, just not blank. For example Bigpipe/Bigpipe
Obtain IP address automatically
Obtain DNS servers automatically
If you need to manually set your DNS servers, the servers are: 203.96.123.1 and 203.96.123.2 (worked fine without them)

 

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Click apply and you're good to go.

 

Beware that you don't go to the advanced tab and go into the IPV6 settings.. Looks similar but not relevant. 

 

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