DNS resets itself automatically

steve2222:

sbiddle:

Who is your ISP? My pick would be you're using an autoprovisioned device that reprovisions itself every day. Since using 3rd party DNS servers carries significant disadvantages for everyday browsing, video and downloads it's one way of maintaining the end user experience.

Bold above - why is that? I can understand with a VPN service where all your internet traffic goes via the VPN, but I thought with a DNS redirector, only your initial web query was sent to the DNS server to see if it is a URL you have asked to have redirected, if not your web request is processed through normal paths. Even if it is an internet site you have requested to be redirected I understood once the initial redirection had been accepted, the actual video would then play via a normal internet route (sorry I have probably not used the correct terms/jargon).

That's exactly how it works. And that's exactly the problem.

Up until 1-2 years ago using a 3rd party DNS such as Google or OpenDNS should never be contemplated because it would significantly impact your Internet experience. Things have gotten a lot better as more DNS services have become CDN aware, but using a 3rd party DNS service can still impact the everyday experience.

Firstly the Internet these days revolves around CDN's, many of which are located within an ISP network. Many ISP's in NZ for example have their own Google cache and Netflix cache which delivers YouTube and Netflix locally from within their network. If you're using a 3rd party DNS it may not redirect you to these local caches simply because it doesn't know about them. This can mean your traffic could come from a different location (which may not even be in the same country) and deliver a sub optimal experience.

Secondly your ISP DNS is typically far closer than 3rd party DNS - if you've got an ISP DNS server that's 5ms away and a 3rd party DNS that's 50ms away then you'll see it can slow down browsing significantly as every new DNS lookup takes 50ms to process.

weera2500

sbiddle