Experiencing Error 400 on Youtube with SHARP LC-40CFE6352E Smart TV - Possible Fixes?

Hello users.
Namely, I have a problem with the above model. I bought a Smart Tv Sharp Lc-40cfe6352e a few days ago. Everything was beautifully nice, however, today when you try to turn on Youtube, error 400 pops up. Youtube does not work like the application from the browser, when you enter the page through Google. In addition, I noticed that they disappeared from the application Tweeter and Facebook. I have reset the TV to the factory settings, but this did not solve the problems. Do any of the Honorable Users know how this has happened and how can this problem be solved?

Call or write to Sharp because recently I read more and more often about the end of support for Smart TV for this producer.

Try to change the internet source - I have been connected to another network. After resetting the router everything works. Good luck

Changing the source of the internet has helped. Thank you so much for help.