How to change the DNS settings on a Plusnet Thomson TG585 broadband router

Ever wondered how to change the DNS settings on a Thomson TG585 ADSL router? I recently faced this challenge after hooking up a Thompson TG585 that had originally come as part of a Plusnet broadband subscription.

I had no problem getting the Thomson router to connect using the details for the new ISP but when it came to looking at the DNS settings I had to do some digging. I did find the IP address for the pre-set DNS and a Google search flag this up as being a server owned by BT which should not be surprising as Plusnet is owned by BT although run at arms length from the parent company.

I wanted to change the settings to use Google Public DNS instead but could not find anywhere in the settings web interface. Looking for information I discovered that the DNS settings on the Thomson TG585 are just not changeable from a web browser, you have to do it via Telnet using command line instructions. Luckily there is a very comprehensive set of instructions on just how to do this in the article “Changing the DNS of the PLUSNET Technicolor TG582n” on the academia.edu web site.

Following the academia.edu instruction I soon had the DNS setting set up as I wanted. I can see that if you are not used to using command line the task might seem a little daunting but follow step by step and you should get there.

Google DNS and OpenDNS settings

Here are the IP addresses you need for Google DNS and Open DNS

Google

  • 8.8.8.8
  • 8.8.4.4

OpenDNS

  • 208.67.220.220
  • 208.67.222.222

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