Linkbucks on router

Hi,

I am having a problem with Linkbucks, which I'm pretty sure is on my router:

Whenever I click on links on twitter or facebook I am redirected to linkbucks. This is happening on all my devices (Mac, Windows 8 PC, android phone) - on chrome it redirects to linkbucks and on IE I just get a 404. I've tried the mac with a 3G dongle and the phone on 3G and the problem stops, so I think the router must be the source of the problem.

I've tried running an adware remover but that didn't come up with anything. There's nothing in my chrome extensions either.

Once I realised it was the router I then tried resetting it but it kept coming back. I have changed the admin password to a strong password as it was originally left on the default password, but it has just come back again after doing this.

I had also been getting a redirect virus that seems to be on google related sites - it won't show me google search results and redirects me to a dodgy fake flash player when I try to use youtube. This hasn't come back since I changed the password, but it has been less than 24 hours since I've done it, so it might still come back.

The router is a TP-Link (TD-W8901G) ADSL router.

Can anyone help?

Thanks

PS - I can't make the scans work, because I'm using a mac.