This would suggest a general fault with communicating with with your router.
When you go into the wireless setup page, can you advise what IP address, subnet and gateway are showing as assigned to the TV?
Many thanks John,
These all look correct, clearly your WIFI is working as your using the internet to connect to just answer.
The next step would be to restart your router, with the TV off, wait 2 minutes for the router to come back online then turn the TV on and see if your getting the same issue.
If you are then look to go through the WIFI setup again on the TV, and re-connect to the WIFI where it prompts for your security key etc, and if that fails, then the last thing you can do would be performing a factory reset, as in some instances the software locks up and causes issues communicating.
Let me know how you get on doing the three suggestions above.
Hi John, glad its all working again for you.
Appreciate if you can rate the service received