Can you watch the other Apps on your LG Smart TV such has BBC iPlayer, YouTube etc ?
Any error codes or messages on your LG TV screen ?
If it's only the NowTV App on your LG TV causing a problem with your NowTV Hub Router, then maybe delete the NowTV App and re install the App again.
Then switch the power off at the mains for both your Hub Router and LG TV, give it a minute, then start up the Hub Router first let it go through it's start up process, then when the three green lights show on the front of the Hub Router switch back on your TV and then try signing back into the NowTV App.
Should none of the Apps will open and work, then go into your LG settings and try re connecting again to the Hub Router using the SSID network name & password shown on the bottom of the Router.
Hopefully other LG Smart TV owners on the forum will come to your assistance on how to get the NowTV App working on your television.
Can you not get the sign-in screen, or can you not sign in, or what?
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