Welcome to the club Airman.
Don't hold your breath for a solution this has been going on for ages.
I have still got my rather old apple TV attached to my LG and though the NOW TV app on it is rubbish to use (no favourites or recently watched etc.) it actually works.
I do not get the Error Code 2 when using it on my LG. Ok sort of as a work around but only if you have an apple TV Box of course.
I am on Fibre to Cabinet and have a good broadband speed so the NOW App in the Apple box is utilised and the signal goes from the Apple TV through HDMI to the same LG TV.
I concur with your opinion and that of many others that the NOW App for the LG TVs is at fault, borne out by Amazon, Netflix, ITV Hub, Iplayer and numerous other Apps on my TV working away happily and of course the Now App written for the Apple TV Box is working via the same TV.
Perhaps if someone at NOW TV can be bothered to look at the coding on the now tv app written for apple they may get an inkling for a fix.
I've returned to see the progress has been zero. I wouldn't hold any breath that this will be fixed. Anyone gone to Watchdog or anything to get this looked at? I find that sometimes focuses companies attention when there's some national coverage of an incident...
Tonight every time I try and watch a programme about Vietnam on Now tv I get Error code 2 on my LG tv. It is an up to date TV 610V UHD and up to date app. Plus I've reset my router and still every few minutes the programme stops. I shall be cancelling my subscription if this carries on. I'm connected via ethernet btw not wifi.
I am now experiencing this for over a week, having followed various bits of advice from previous threads nothinhg has improved. I have been using Now TV for over two years and this is the first issue. I have other streaming Apps which work fine on my LG TV. It is not the TV!
When will Now TV do sonething about this, I am at the point of just cancelling my subcribtion and requesting a refund for inability to prive a service paid for.
Please advice status and don't ask me to reboot my router again.
Same problem as many others it seems. Can sometimes log in on my LG tv but crashes to ERROR CODE 2 after a couple of minutes. No isues on laptop and android phone. Frustrating watching live sport. Tried all suggestions such as powering off and on again, uninstall and reinstall - nothing seems to work. Please help !!