I have the same issue with my netbook on Windows 10 S.
They told me to install another app, but it's not from Microsoft Store so it's not permitted on Windows 10 S.
We pay for service, why can't nowtv do basic customer service and also hire some software developers??????
Sky need to let nowtv have some money to fix just their service or it will eventually wind it up. It's definitely seems like a 2 bit operation out of a garage compared to other streaming apps like Netflix or BBC iPlayer.
I’m not sure they could run to a whole garage........
Same issue here, and I think its purely due to that version (Windows store app) not being supported any more...
It was working fine for me (wasn't even aware of newer player application) until I had to sign out and back in (needed to change my password as I couldn't remember what it was and my son wanted to use it on his PC). Signed out, changed my password, and now I'm getting this generic error message when I try and sign back in.
Can sign into the website no problem, and watch via the browser / player combination but it seems my laptop isn't really powerful enough to run it as I'm getting constant stuttering of both picture and sound, slow then fast bits, loss of sound, etc. Needless to say my son got the brunt of my ire as I would have been happily still using the old app if he hadn't needed the password.
If only there was someway to go back to the old Win 10 app... 😞
OH MY GOD GUYS I HAVE FOUND THE SOLUTION!!!!!
Its taken months...
Go to this website and follow Solution 2: Re-registering the Applications.
Let that run, don't worry about the Red errors.
Restart your PC and open Now TV app!!!
I cant believe it!!!
I had this problem today and found the solution from within the 'help centre' under 'What devices can I use to watch Now TV?'. You need to download the player from within the website itself and not from Microsoft Store. Login and find something to watch and a 'download player' option will be there. Click on it and it should install. After installing, click on the film again from within the website to watch your film.