I tried the re-install which didnt work either , and you cant delete the netflix app to fully re-install it as it is part of the default software. My guess is the re-install just does the app, but doesnt clear out the broken settings that stops it from connecting. You can trick the TV into deleting Netflix however by pressing the FFWD button, then 289 , then the REWIND button and the hidden county menu appears. Select SYRIA (which doesnt allow netflix) and it will be deleted (also other apps will get cleared like iPlayer, Amazon etc , so you may need to reenter some passwords eventually) , go through accepting the T&C's and its then removed. Now do the same again and select your actual country and Netflix and all the other default apps for your country are properly re-installed. You can now get past the "not able to connect" screen and login.
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