Samsung UE40D6530 TV stpped connecting to internet through TG582n router

[#1]

Hi guys
My TV which previously connected fine to the internet for iPlayer, YouTube and other VOD and catch up services, suddenly stopped connecting. It seems to connect to router OK but can't connect to internet. Error message says "please contact your ISP". I usually connect via WiFI but I have also tried connecting directly to router with a ethernet cable and same problem exists. I also tried deleting MAC profile for TV from router and then trying again, and also completely powering down TV (pulled out plug) and restarting.
Support email sent to Samsung, response awaited...
I'm tearing my hair out. I realise it probably is more likely to be a Samsung problem rather than a Plusnet problem but I'm hoping some clever person here might have enough experience to suggest a solution or at least line of investigation.
thanks in advance...

[#2]

I put
Samsung smart TV not connecting to internet
into Google and it looks as if a lot of it about, hope one of the Links helps you.
Regards
David
PS I'm not having a problem with my Samsung Smart TV

[#3]

Hi. My Samsung 40ES5500KX TV has done the exact same thing this Tuesday evening (24 Feb 15).
Its been connected fine for over 2 years via WLAN - no problems.
Now it can connect to the router but NOT to the internet, via WLAN or Cable.
I've updated the TC via USB - still the same.
Everything else connects fine (Mac, PC, Phones..)
Have Plusnet done something?
Both our TV's can't have gone faulty at the same time..

[#4]

@dmgeorge Its not a PlusNet issue its a problem at Samsung's end there are many threads on other forums about the issue, just do a quick Google search to see.

[#5]

My Samsung TV has done exactly the same. No connection last night or tonight. Everything fine up until then. Really not sure what the next steps are (as I claim no technical skills in this field at all!). Can someone out there advise me what I might do?
Thank you
NigeatFK

[#6]

Hi guys,
Try changing your TV's DNS to 151.80.14.237 (got this from http://www.isitdownrightnow.com/samsung.com.html and it worked for me)